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Soil Composition and Formation Quiz

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Questions and Answers

What is the primary process responsible for the formation of soil?

Weathering (correct)

Deposition

Transportation

Erosion

What are the main components of soil?

Parent rock, organic material, air, and water (correct)

Humus and air

Parent rock and minerals

Organic material and water

Which type of soil is produced when the parent material is sandstone?

Peaty soil

Clay soil

Sandy soil (correct)

Loamy soil

Which form of weathering involves the breakdown of rocks by external or internal forces?

Mechanical weathering Signup and view all the answers

What happens to water in cracks in rocks during freeze-thaw weathering?

It expands Signup and view all the answers

What is the main cause of weathering in the Caribbean according to the text?

Colliding rocks from moving water in rivers or waves Signup and view all the answers

What is the abrasive agent that causes the wearing away of rock surfaces in very dry regions?

Sand particles carried by wind Signup and view all the answers

Which process leads to onion-skin weathering described in the text?

Repeated expansion and contraction due to high temperatures Signup and view all the answers

What happens to the outer layers of rocks as a result of onion-skin weathering?

They shatter and break off in pieces Signup and view all the answers

How does the temperature change impact rock surfaces according to the text?

Results in rock cooling and contracting at night Signup and view all the answers