In the middle Jurassic, much of the western part of North America was covered with vast inland.
The Middle Jurassic is the second epoch of the Jurassic period. It existed between 174.1 and 163.5 million years ago. Fossils of terrestrial animals, such as dinosaurs, from the Middle Jurassic, are relatively rare, but geological formations containing fossils of terrestrial animals include the Marble Formation in England, the Kilmaluag Formation in Scotland, the Daohugou Formation in China, the State Formation in Russia and the Isalo III Formation in western Madagascar.
During the Middle Jurassic, Pangea began to split into Laurasia and Gondwana, and the Atlantic Ocean was formed. Eastern Laurasia was tectonically active as the Cimmerian Plate continued to collide with the southern coast of Laurasia, completely closing the Paleo-Tethyan Ocean. A subduction zone on the west coast of North America that continues to create the ancestral Rocky Mountains.
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Why does the equatorward bending of height contours for the 500 mb level imply the presence of a trough?
The equatorward bending of height contours for the 500 mb level imply the presence of a trough because this represents a region of overall lower heights. A valley and a trough are hence equivalent in the upper air flow.
A trough is a linear structural depression with lateral length that occurs in geology. A trough can be a small basin or a natural rift, albeit it is lower than a trench. At the edge of tectonic plates, these landforms frequently form.
Trough, an extended depression in the seafloor that differs from oceanic trenches in that it is shallower, shorter, narrower, and topographically more mild. The Papuan Trough's maximum depth is 2,300 m (7,500 feet), while the Banda Trough's maximum depth is 7,440 m.
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Which description characterizes an earthquake hazard correctly and broadly?
Cascadia megathrusts with tsunamis characterizes an earthquake hazard correctly and broadly.
An earthquake is the shaking of the surface of the Earth resulting from a sudden release of energy in the Earth's lithosphere that creates seismic waves. or simply An earthquake is what happens when two blocks of the earth suddenly slip past one another. The surface where they slip is called the fault or fault plane.Earthquake hazard is anything associated with an earthquake that may affect the normal activities of people. This includes surface faulting, ground shaking, landslide, liquefaction, tectonic deformation, tsunamis, and seiches.here A tsunami is a series of waves in a water body caused by the displacement of a large volume of water, generally in an ocean or a large lake.to know more about tsunami click here
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Why are unconfined aquifers more vulnerable to pollution from runoff and underground seepage than confined aquifers?
Unconfined aquifers more vulnerable to pollution from runoff and underground seepage than confined aquifers because as water seeps into the soil, contaminants on the ground surface may enter the unconfined aquifer.
What is Unconfined aquifers?Unconfined aquifers, sometimes known as "water table aquifers," are more susceptible to surface pollution contamination than confined aquifers.An aquifer with a water table, also known as an unconfined aquifer, has its upper water surface at atmospheric pressure, allowing it to rise and fall.Unconfined aquifers are found underneath a permeable layer of soil, whereas confined aquifers are covered by an impenetrable layer of rock or clay. Aquifers can be formed by a wide variety of sediments and rocks, including gravel, sandstone, conglomerates, and fractured limestone.Learn more about Unconfined aquifers here:
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What large freshwater bodies form part of the border between the modern-day us and canada?.
The great lakes form part of the border between the modern-day US and Canada which include lakes Superior, Michigan, Huron, Erie, and Ontario.
What are Great Lakes?The great lakes are the main freshwater bodies of North America.Government institutions in Canada and the United States have developed an agreement to apply standard regulations throughout this water system to safeguard it and make it a sustainable resource.In addition to housing about 30 million people, it also contains about 84 percent of all the freshwater in North America. Lands in both Canada and the United States are included in the watershed. The responsibility of conserving this priceless resource is onerous due to the watershed's immense size and volume.Learn more about great lakes here:
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Alpine glaciers include all of the following except? an ice cap. a cirque glacier. a piedmont glacier. a valley glacier.
Alpine glaciers include all of the following except an ice cap.
Alpine glaciers are slow rivers of ice that flow from high mountains. Like their continental counterparts, they make their land through weathering and sedimentation. Examples of alpine glacier landforms include ridges, basins, lateral moraines, hanging valleys, terminal moraines, and fjords.
Alpine glaciers are mainly divided into three groups. (1) A glacier that extends in a continuous track and moves outward in all directions is called an ice sheet if it is the size of Antarctica or Greenland, and an ice cap if it is smaller. (2) A glacier trapped in a path that guides the movement of ice is called a mountain.
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which of the 3 natural causes of climate change do you think will have the most effect on earth ? give reasons why
Answer:
The potential future effects of global climate change include more frequent wildfires, longer periods of drought in some regions, and an increase in the duration and intensity of tropical storms.
Weathering of rocks usually is most intense in the center of a rock fragment, and gradually decreases toward the outside. select one:
a. true
b. false
Answer:
B - False
Explanation:
Weathering is caused by water, soil, wind or anything that can cause friction
A fault that accommodates the horizontal movement of one tectonic plate past another is a(n) __________ fault.
A fault that accommodates the horizontal movement of one tectonic plate past another is a transform fault.
An example of a transform fault is a strike-slip fault where the relative horizontal slip allows movement to occur between two tectonic limits, such as two ocean ridges. They are linked to other defects on both ends.
Since these faults neither build nor destroy lithosphere, they are sometimes known as transform faults or transform boundaries, and their relative motion is primarily horizontal. A transform fault allows for some horizontal relative movement between other tectonic components, like oceanic plates.
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Search for wet surfaces, ice, loose gravel, debris and uneven pavement because any reduction in traction will increase your ___________ while driving.
Search for wet surfaces, ice, loose gravel, scrap and uneven pavement as a result of any reduction in traction can increase your risk during driving.
What are the risks while driving?Motor vehicle operation is hazardous. Data from the National Highway Road Safety Administration show that since the early 1970s, there have been much fewer fatal traffic accidents in the United States. Despite this, the annual death toll continues to remain about 35,000, and car accidents frequently rank among the top ten killers.Operator error frequently plays a major role in accidents.Here the risk factors while driving:
Driving while impaired by alcohol or drugs.Driving while fatiguedSpeedingDriving when distractedDriving too quickly for the weatherTractor trailer drafting.Driving carelesslyNot using a seat belt.Learn more about driving here:
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This is a _____ map?
Answer:
special purpose
Explanation:
It is used to measure cm of rain of different regions of a country or a place.
The site on the surface of a reactant or substrate where it binds to the enzyme is called the:_____.
The site on the surface of a reactant or substrate where it binds to the enzyme is called the active site.
The active site or catalytic site is the specific site of an enzyme where substrates bind. Structural complementarity between E and S allows for exact matches. Enzymes adapt to their substrates through a conformational change known as induced adaptation.
Substrate and active site are two terms used for catalytic reactions involving an enzyme as the catalyst. The difference between the substrate and the active site is that the active site is a specific region of the enzyme whereas the substrate is the chemical compound that can undergo a chemical reaction.
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If the fluid flowing through a rock is changed from water to oil, the hydraulic conductivity will change but the permeability will remain the same. true /false
If the fluid flowing through a rock is changed from water to oil, the hydraulic conductivity will change but the permeability will remain the same. True.
here Hydraulic conductivity of the material can be defined as the ability of the fluid to pass through the pores and fractured rocks. The conductivity depends on the type of the soils that are found in the region.
where as Permeability is a measure of the ease of passage of liquids or gases or specific chemicals through the material. Permeability is determined by applying a head and determining the depth of penetration or the amount of liquid or gas passing through the sample.Hydraulic conductivity, sometimes called permeability, expresses how fast water flows through the soil voids; it is a function of the texture, grain size and distribution, density, as well as the macrostructure of the soil. For most engineering problems involving seepage and drainage of soils, Darcy's Law is valid.to know more about permeability click here
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What large freshwater bodies form part of the border between the modern-day us and canada?.
Lakes Superior, Michigan, Huron, Erie, and Ontario
Lakes Superior, Michigan, Huron, Erie, and Ontario are the large freshwater bodies forming part of the border between the modern-day us and Canada.
They are generally found on or close to the Canada-United States border and are known as Lakes Superior, Michigan, Huron, Erie, and Ontario. Lakes Michigan and Huron are linked hydrologically at the Straits of Mackinac to form a single body. Modern shipping and travel by water between the lakes are made possible by the Great Lakes Waterway.What freshwater system is the biggest?The Great Lakes
The world's largest freshwater system is comprised of the Great Lakes. The five Great Lakes—Superior, Huron, Michigan, Erie, and Ontario—combine to form the biggest freshwater system in the world, with a combined surface size of 94,600 square miles. They are connected by other lakes and rivers.To learn more about Freshwater bodies visit:
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This type of synovial joint has two flat bone surfaces that allows for the bones to slide over one another creating tiny movement in all directions. this joint is called:_______.
This type of synovial joint has two flat bone surfaces that allows for the bones to slide over one another creating tiny movement in all directions. this joint is called gliding joint.
What is synovial joint?The joints of the limbs and other bones that rub up against one another are examples of synovial joints (e.g. shoulder, hip, elbow and knee). Its distinguishing feature is a joint cavity filled with fluid.Synovial joints enable motion. A thin layer of tough, smooth articular cartilage covers the surfaces of the bones where they come together to form a synovial joint. A very thin coating of synovial fluid, a slippery, viscous joint fluid, separates and lubricates the two sides of the two cartilage-covered bones. What is gliding joint?When two bones come together at flat or nearly flat articular surfaces, they produce a gliding joint, sometimes referred to as a plane joint or planar joint. The bones can pass one other by sliding along the joint's plane in all directions, including up, down, left to right, and diagonally.Learn more about synovial joint here:
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What component of the cleanup of the deepwater horizon oil spill is suggested to have caused more harm to marine organisms than the oil?
Dispersants are used for the cleanup of the deepwater horizon oil spill.
Dispersants are chemicals that are used to spray on the oil slick in order to break down the oil into smaller droplets which easily get mixed with the water .It doesn't reduce the amount of the oil but pushes the effects of the spill underwater. Since it makes the spill oil less visible, because of the dispersant and dispersed oil higher negative impacts on marine life ranging from fish to birds to corals. Dispersants release toxic breakdown products from the oil, which individually or with a combination of oil droplets and chemicals, making the water toxic, even it is affecting the early stages of corals by increasing death rates, altering the behavior, and so on, after absorbing those toxic water the sea turtles' organs are affected and there is interference in their respiration, digestion, and excretion too.
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.
What type of renewable energy source has declined in the United States in recent years?
Wind and solar renewable energy technologies have seen substantial cost declines over the past decade. Between 2010 and 2019, the cost of utility-scale solar photovoltaics fell 82 percent, and the cost of onshore wind fell 39 percent.
Increased demand and procurement requires more of these technologies to be manufactured and developed, causing reduced costs due to learning and economies of scale, which increases the incentive for additional procurement. Factors affecting renewable energy deployment include market conditions, policy decisions, as well as specific regulations. Nearly all countries had renewable energy policy targets in place at the end of 2020. Businesses with sustainability goals are also driving renewable energy development by building their own facilities, procuring renewable electricity through power purchase agreements, and purchasing renewable energy certificates.
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The seismic-gap method of earthquake forecasting works by identifying __________.
The seismic-gap method of earthquake forecasting works by identifying segments along a fault that not moved for the longest amount of time.
The possibilities of an earthquake of a particular magnitude occuring inside a location over a period of years are referred to as earthquake forecasting. On the basis of the average frequency of previous seismic activity in a region, probabilities can be determined.
Seismographs, which became widely used in the early 1900s, have been used to record earthquakes in areas where this technology is most helpful. By excavating trenches and looking through the geological record for seismic ruptures that happened in the distant past, scientists can learn more about these events, but with less accuracy.
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chemical reaction is a chemical change. justify with an example
Answer:
A chemical transition is the result of a chemical reaction, whereas a physical change is when the structure of matter changes, but not the chemical identity. Burning, cooking, rusting and rotting are examples of chemical changes.
A lake that has been affected by acid rain can have a ph of 4. how many more times acidic is the lake than seawater?
A lake that has been affected by acid rain can have a ph of 4. so the lake is 10,000 times acidic than seawater
Seawater has a pH of 8, so there's a difference of 4 pH units, so there's a difference in hydrogen ion concentration of 10^4.
here Acid rain is rain or any other form of precipitation that is unusually acidic, meaning that it has elevated levels of hydrogen ions. Most water, including drinking water, has a neutral pH that exists between 6.5 and 8.5, but acid rain has a pH level lower than this and ranges from 4–5 on averageAcid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. These substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.to know more about acid rain click here
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The nist-f1 cesium fountain clock in colorado is our standard for ____ in measuring time.
The NIST-F1 Cesium fountain clock is in Colorado. It is the standard for primary time and frequency in measuring time.
The NIST laboratories in Boulder, Colorado, developed the cesium fountain atomic clock NIST-F1, which serves as the country's primary time and frequency standard. NIST-F1 is a member of the global network of atomic clocks that establishes Coordinated Universal Time (UTC), the recognized global time.
The NIST-F1 is known as a fountain clock because it measures frequency and time intervals by using the atoms' fountain-like movement. Atomic clocks are the most precise means of measuring time intervals, or the amount of time that separates two events.
Atoms in the clocks leap from one energy level to another due to the precise frequency at which these clocks emit electromagnetic radiation, such as microwaves.
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Africa's best example of an exotic river is the ________. orange nile rhine amazon
Nile.
Africa's best example of an exotic river is the Nile. We can also observe that it is the longest river on earth. It takes an origin from Uganda.
Why is the river Nile so well-known?The Nile was crucial in the conveyance of materials for building projects and other major undertakings, as well as for providing food and other resources, land for cultivation, and a method of transit for the Egyptians. It was a crucial lifeline that genuinely gave the desert life.How many nations does the Nile traverse?Egypt, Sudan, South Sudan, Eritrea, Ethiopia, Kenya, the Democratic Republic of the Congo, Burundi, Rwanda, Uganda, and Tanzania make up the nations that make up the Nile River's basin. The White Nile and the Blue Nile are two of the Nile's tributaries.To learn more about river Nile visit:
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help me please help me please.l
Answer:
B
Explanation:
Metals (like copper and aluminium) are good conductors of heat and electricity, while nonmetals (such as phosphorus and sulfur) are insulators.
One region in the middle east is called mesopotamia. This name means the land between the rivers. Where do you think this region lies?.
A region that lies mostly within the borders of modern-day Iraq, but also included parts of Syria, Turkey, and Iran.
Mesopotamia is a historical region of West Asia located in the Tigris-Euphrates river system, north of the Fertile Crescent. Today, Mesopotamia occupies modern Iraq. In a broader sense, the historical region included present-day Iraq and Kuwait and parts of present-day Iran, Syria, and Turkey.
Sumerians and Akkadians from different parts of present-day Iraq dominated Mesopotamia from the earliest period of recorded history (circa 3100 BC) until the fall of Babylon in 539 BC Congregation. BC, when it was conquered by the Achaemenid Empire. It fell into the hands of Alexander the Great in 332 BC, and after his death, it became part of the Seleucid Greek Empire. After that, the Arabs dominated much of Mesopotamia (circa 900 BC - 270 AD).
Mesopotamia is home to the earliest developments of the Neolithic Revolution from around 10,000 BC. He is identified as having "inspired some of the most important developments in human history, including the invention of the wheel, the cultivation of the first cereal crops, and the development of cursive, mathematics, astronomy, and agriculture".
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How does the spacing of the contour lines show the difference between gentle and steep slopes?
Where slopes are steep, contour lines are closely spaced.
The slope is determined by the distance between contour lines; the greater the distance, the softer the slope.
What is contour line?A contour line of a two-variable function is a curve that connects points of equal value and along which the function has a constant value. It is a portion of the plane in the three-dimensional graph of the function f.On a map, you'll notice three different types of contour lines: supplemental, index, and intermediate. The thickest contour lines are called index lines, and they are typically numbered at some point along their length.There are numerous types of landforms on the surface of the earth, and they range greatly in height and elevation. The elevations of these surface features are depicted on contour maps, allowing you to view a two-dimensional map and imagine the Earth in three dimensions.Learn more about contour line here:
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What actions can you take before or during an earthquake to reduce your chances of being hurt?
Actions that are taken before or during an earthquake to reduce your chances of being hurt are
Make or purchase an earthquake safety kit.Decrease the risk of damage and injury from an earthquake by identifying possible earthquake-sensitive areas near the home.During earthquakes stay far away from tall buildings and trees.Read instructions of NDRF and be prepared for Earthquakes.Earthquakes can also cause fires by damaging electrical power or gas lines, so shut down after getting alert before the disaster.In-home we can make earthquakes prone things and set them in a way to avoid major damage. Like attaching the Cupboard to the wall, etc.These are some of the actions that will help us to prevent major damage during an earthquake.
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If the seafloor is suddenly displaced vertically upwards, the ocean water will respond by?
If the seafloor is suddenly displaced vertically upwards, the ocean water will respond by it will momentarily rising.
The ocean floor contains deposits of minerals that we use in our daily lives, such as copper, zinc, nickel, gold, silver, and phosphorus. These deposits occur as crusts of volcanic rocks and other rocks, as nodules on sediments in deep-sea plains, and are usually about 3 to 10 centimeters (1 to 4 inches) in diameter.
Seafloor spreading is a geological process in which tectonic plates (large plates in the Earth's lithosphere) separate from each other. Seafloor spreading and other tectonic activity processes are the results of mantle convection.
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How did the development of an interstate highway system change the urban landscape in the united states?.
The US interstate highway system destroyed the city's white urban middle class and lower middle-class residential areas.
New "whites only" residential areas were created in low-cost land areas outside urban and suburban employment centers and in formally rural agricultural areas by providing means of economic communication at low (relatively) cost. Those areas are being acquired by land speculators, who have profitably developed them into suburban residential housing subdivisions. With all interregional connectivity and newly built shopping and commercial centers. Before the US interstate highway, even small- to medium-sized cities had dense urban cores, with much of the development geared toward pedestrians and mass transit users. After the interstate, by the 1970s, only a few areas had the density to support pedestrian and mass transit infrastructure until more and more people depended on cars. It's popular now to blame urban areas on freeways. It's just as important to consider that many suburban areas, especially in the Northeast, need new housing developments with 2-5 acre land requirements. Also, many areas across the country have strict zoning requirements that only mandate residential development for miles and miles of land, so no one would walk that far even if they wanted to.
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Please help due soon.
What evidence demonstrates that the shang ruling elite believed the king was an intermediary between heaven and earth?
The carvings on the oracle bones provide proof that the Shang people and ruling class thought of the king as a bridge between heaven and earth.
Chinese characters known as oracle bone writing were once inscribed on animal or turtle plastrons used for pyromantic divination. The bone was incised with questions regarding battles, crops, the weather, and the royal family; the heat was then applied with metal sticks.
The Shang people thought that oracle bones could be utilized to connect with ancestors and gods In heaven who could bring good fortune, calamities, and advice to the living world.
The king and other royal family members or trusted "diviners" performed oracle bone divination in the royal court.
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________ dating involves age-dating fossils with known time periods grouped into four eras that represent distinct ages in the history of the earth.
Relative dating involves age-dating fossils with known time periods grouped into four eras that represent distinct ages in the history of the earth.
Relative dating is used to chronologically order geological occurrences and the rocks they leave behind. Relative dating does not give the rocks' precise numerical ages. Even when you locate rocks that are quite far apart but are the same age, fossils can still be used to match them.
Correlation is the term for this matching procedure, which has been crucial in creating geological timescales. Index fossils are specific fossils that are very helpful in connecting rocks. A fossil must have lived during a particular time period, be simple to recognise, abundant, and found in numerous locations in order to qualify as a good index fossil.
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