Americans waste what percentage of their food?
A. 1-5%
B. 10-20%
C. 30-40%
D. 60-75%
E. 80-90%
Answer: C
Environmental & Atmospheric Sciences
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____________ is the process by which living organisms are formed from simple organic molecules. Fill in the blank(s) with the appropriate word(s)
Environmental & Atmospheric Sciences
Oil shale deposits ________
A) have been too expensive to extract and use as energy resources B) contain organic kerogen which can be processed into petroleum C) can be pumped from underground reservoirs like conventional crude oil D) are only a tiny fraction of the U.S. and Canadian potential oil reserves E) are concentrated in the Middle East
Environmental & Atmospheric Sciences
For humans, how many essential amino acids are there?
A) 0 B) 2 C) 3 D) 10
Environmental & Atmospheric Sciences
Services represent the tertiary sector of economic activity?
Indicate whether the statement is true or false
Environmental & Atmospheric Sciences