The two most abundant elements in Earth's crust are

A. quartz and feldspar.
B. silicon and oxygen.
C. oxygen and aluminum.
D. silicates and carbonates.


Answer: B

Environmental & Atmospheric Sciences

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A chimpanzee on a space walk tosses his hat away. Both the chimp and his hat will move

A. a short distance and then gain speed. B. away from each other, but at different speeds. C. away from each other at the same speed. D. a short distance and then slow down.

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Instructions: Choose one answer from each pair of selections. Does accretion (riming) occur during the ICE CRYSTAL process or the COLLISION COALESCENCE process?

Environmental & Atmospheric Sciences

What is the significance of the National Environmental Policy Act?

What will be an ideal response?

Environmental & Atmospheric Sciences

According to the 2013 Fifth Assessment Report of the IPCC, the primary source of the increased atmospheric concentration of carbon dioxide since the pre-industrial period results from ____________________ use, with land-use change providing another significant but smaller contribution

Fill in the blank with correct word.

Environmental & Atmospheric Sciences