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AP Enviro

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Unit 4

4.11 MC Answers and Review

5 min read•december 21, 2021

AP Environmental Science ♻️

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Answers and Review for Multiple Choice Practice on Earth Systems and Resources

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The climate of a region is determined by longterm averages in temperature and precipitation.

⛔STOP!⛔ Before you look at the answers make sure you gave this practice quiz a try so you can assess your understanding of the concepts covered in unit 4. Click here for the practice questions: AP Environmental Science Unit 4 Multiple Choice Questions.

Facts about the test: The AP Environmental Science exam has 80 multiple choice questions and you will be given 1 hour 30 minutes to complete the section. That means it should take you around 17 minutes to complete 15 questions.

*The following questions were not written by CollegeBoard and although they cover information outlined in the AP Environmental Science Course and Exam Description the formatting on the exam may be different.

1. The idea that Earth's lithosphere is divided into plates that move is the theory of

A. Relative gravity

B. Plate Tectonics

C. Entropy

D. Plate Boundary Separation

Answer: The theory of plate tectonics states that the lithosphere, the top most layer of the Earth is a dried crust moving on a molten base and that the plates move around on these currents.

📄 Study AP Environmental Science, Unit 4.1: Tectonic Plates

2. The very high temperature in the core of the Earth is from

A. Friction

B. Ultraviolet radiation

C. Radioactive decay

D. Combustion

Answer: The center of the earth is experiencing radioactive decay and this is what causes the high temperatures.

📄 Study AP Environmental Science, Unit 4.1: Tectonic Plates

3. Areas with seafloor spreading, volcanoes and rift valleys are most likely

A. Strike Slip boundaries

B. Transform boundaries

C. Convergent boundaries

D. Divergent boundaries

Answer: Divergent boundaries are where the Earth is coming apart, resulting in exposure of magma (volcanoes) or the creation of valleys.

📄 Study AP Environmental Science, Unit Unit 4.1: Tectonic Plates

4. The removal of rock from one area to another is the process of

A. Erosion

B. Weathering

C. Sedimentation

D. Carving

Answer: Erosion is the removal of rock and weathering is the breakdown of rock.

📄 Study AP Environmental Science, Unit 4.2: Soil Formation and Erosion

5. What feature of soil can affect its porosity and permeability?

A. Chemical composition

B. Particle size

C. Location in the horizon

D. Depth

Answer: The particle size of soil directly impacts porosity and permeability

📄 Study AP Environmental Science, Unit 4.3: Soil Composition and Properties

6. Identify the correct statement about plant roots and the type of weathering they may cause.

A. Only physical weathering

B. Only chemical weathering

C. Both physical and chemical weathering

D. Neither physical or chemical weathering

Answer: Plants roots can cause both physical and chemical weathering

📄 Study AP Environmental Science, Unit 4.2: Soil Formation and Erosion

7. When looking at soil layers or horizons, the topsoil is found in the

A. A horizon

B. B horizon

C. E horizon

D. R horizon

Answer: A horizon is the topsoil, consisting of organic material mixed with minerals.

📄 Study AP Environmental Science, Unit 4.2: Soil Formation and Erosion

8. When looking at soil layers or horizons, the bedrock or parent material is found in the

A. A horizon

B. B horizon

C. E horizon

D. R horizon

Answer: R horizon is pure parent rock material.

📄 Study AP Environmental Science, Unit 4.2: Soil Formation and Erosion

9. The layer of the atmosphere where weather occurs is the

A. Thermosphere

B. Mesosphere

C. Stratosphere

D. Troposphere

Answer: All weather events and green houses gasses are located in the troposphere, the layer closest to the surface of the Earth.

📄 Study AP Environmental Science, Unit: 4.4: Earth's Atmosphere

10. The layer of the atmosphere where the ozone layer is located

A. Thermosphere

B. Mesosphere

C. Stratosphere

D. Troposphere

Answer: The 'good' ozone that prevents harmful UV radiation from hitting earth's surface is in the stratosphere. This is the second layer up from the Earth, on top of the Troposphere.

📄 Study AP Environmental Science, Unit: 4.4: Earth's Atmosphere

11. Weather events like hurricanes spin clockwise in the northern hemisphere and counterclockwise in the southern hemisphere due to the

A. Coriolis effect

B. Tilt of the earth on its axis

C. The difference in longitude

D. Seasonal change in expose to UV radiation

Answer: The Coriolis effect is the force on a rotating system that causes the wind and water on earth to spiral to the right in the northern hemisphere and to the left in the southern.

📄 Study AP Environmental Science, Unit 4.5: Global Wind Patterns

12. The entire area of land that a river drains is known as its

A. Watershed

B. Deadzone

C. Groundwater

D. Estuary

Answer: A watershed includes all of an area that drains into one river, the Mississippi river has a massive watershed that is drains and picks up a lot of man made pollutants as it collects into one river.

📄 Study AP Environmental Science, Unit 4.6: Watersheds

13. The highest amount of solar radiation is directed to

A. The polls

B. The temperate regions

C. The equator

D. Different areas depending on the season

Answer: The equator gets the most direct solar radiation throughout the year this results in more consistently warm temperatures.

📄 Study AP Environmental Science, Unit 4.7: Solar Radiation and Earth's Seasons

14. El Nino is associated with

A. Colder ocean water on the west coast of the Americas

B. Warmer ocean water on the east coast of the Americas.

C. Colder ocean water on the east coast of the Americas