FREE SCIENCE AND STUDY GAMES ABOUT MR. VAUGHAN

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FREE SCIENCE AND STUDY GAMES ABOUT MR. VAUGHAN

UNIT 3 EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -35 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: abrasion

Answer:

the process by which rock is reduced in size by the scraping action of other rocks driven by water, wind, and gravity

Question 2: weathering

Answer:

the natural processes by which atmospheric and environmental agents, such as wind, rain, and temperature changes, disintegrate and decompose rocks

Question 3: groundwater

Answer:

the water that is beneath Earth's surface

Question 4: soil

Answer:

a loose mixture of rock fragments, organic material, water, and air that can support the growth of vegetation

Question 5: oxidation

Answer:

a chemical reaction in which a material combines with oxygen to form new material; in geology, oxidation is a form of chemical weathering

Question 6: biosphere

Answer:

the part of the Earth where life exists; includes all of the living organisms on Earth

Question 7: physical weathering

Answer:

the mechanical breakdown of rocks into smaller pieces that is caused by natural processes and that does not change the chemical composition of the rock material

Question 8: mudflow

Answer:

the flow of a mass of mud or rock and soil mixed with a large amount of water

Question 9: glacial drift

Answer:

the rock material carried and deposited by glaciers

Question 10: soil profile

Answer:

a vertical section of soil that shows the layers, or horizons

Question 11: beach

Answer:

an area of the shoreline that is made up of deposited sediment

Question 12: loess

Answer:

fine-grained sediments of quartz, feldspar, hornblende, mica, and clay deposited by the wind

Question 13: creep

Answer:

the slow downhill movement of weathered rock material

Question 14: acid precipitation

Answer:

rain, sleet, or snow that contains a high concentration of acids

Question 15: Earth System

Answer:

all of the nonliving things, living things, and processes that make up the planet Earth, including the solid Earth, the hydrosphere, the atmosphere, and biosphere

Question 16: humus

Answer:

dark, organic material formed in soil from the decayed remains of plants and animals

Question 17: shoreline

Answer:

the boundary between land and a body of water

Question 18: erosion

Answer:

the process by which wind, water, ice, or gravity transports soil and sediment from one location to another

Question 19: geosphere

Answer:

the mostly solid, rocky part of Earth; extends from the center of the core to the surface of the crust

Question 20: sandbar

Answer:

a low ridge of sand deposited along the shore of a lake or sea

Question 21: rockfall

Answer:

the rapid mass movement of rock down a steep slope or cliff

Question 22: landslide

Answer:

the sudden movement or rock and soil down a slope

Question 23: chemical weathering

Answer:

the chemical breakdown and decomposition of rocks by natural processes in the environment

Question 24: cryosphere

Answer:

those portions of Earth's surface where water occurs in a solid form

Question 25: atmosphere

Answer:

a mixture of gases that surrounds a planet or moon

Question 26: soil horizon

Answer:

each layer of soil within a soil profile

Question 27: deposition

Answer:

the process in which material is laid down

Question 28: energy budget

Answer:

the new flow of energy into and out of a system