What role do colloids serve in the soil?

A. influence soil’s water-holding capacity
B. help soil to breakdown organic content
C. influence air’s availability to soil
D. produce positive-charge ions in soil
E. influence soil’s acidity and alkalinity


A

Environmental & Atmospheric Sciences

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All of the following are elements except

a. Water b. Oxygen c. Nitrogen d. Hydrogen e. Carbon

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Arid climates are

A) located where precipitation exceeds evaporation for several months. B) are found on the east coasts of most continents. C) confined to Sahara, Arabian Peninsula, and American Southwest. D) not all hot and can have freezing temperatures, even during the day.

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Discuss the sources and formation of Late Paleozoic minerals. How are these resources used? What will be an ideal response?

Environmental & Atmospheric Sciences

Iceland sits on a ________ plate boundary

A) hot spot B) transform C) divergent D) convergent

Environmental & Atmospheric Sciences