Plants are important in producing soils. How do plants at the surface affect the B horizon?

What will be an ideal response?


Plants and plant matter generate organic acids which aid in dissolution of minerals in the A and E horizons. The liberated ions are flushed to deeper layers (B), leading to precipitation.

Environmental & Atmospheric Sciences

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Which of the following compounds is used as an antacid?

A) NaHCO3 B) NaNO3 C) Na3PO4 D) Na2SO4

Environmental & Atmospheric Sciences

True or False: Cleavage planes form where bonds are weakest in minerals

Indicate whether this statement is true or false.

Environmental & Atmospheric Sciences

A negative feedback mechanism works to enhance a change in the environment.

Answer the following statement true (T) or false (F)

Environmental & Atmospheric Sciences

A freely falling boulder has a speed of 30 m/s at one instant. Exactly 2 seconds later, its speed will be

A. more than 50 m/s. B. 50 m/s. C. the same. D. 40 m/s.

Environmental & Atmospheric Sciences