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19 Dec 2022

Question 2

Humus comes from

A clay soil

B dead plants and animals

C bedrock

 

Question 3

Which statement best describes soil?

A a mixture of weathered rock and decomposed organic material

B a mixture of sediments weathered into different grain sizes

C a mixture of different types of rock particles weathered from different types of bedrock

 

Question 5

Which best describes the composition of a typical soil's A horizon?

A humus and small rock fragments

B mostly decomposing organic matter

C large, mostly unweathered pieces of rock