When stars appear to twinkle or flicker, it is a condition known as ____
a. fluctuation
b. iridescence
c. glorification
d. shimmering
e. scintillation
ANSWER: e
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A) addition B) reduction C) oxidation D) substitution
The "Great Game" describes conflict over what disputed region?
A) British and Russian over Nepal B) British and Russian over Afghanistan C) India and Pakistan over Kashmir D) Bangladesh E) none of the above
Cells obtain energy from ATP
A) when ADP is converted to ATP. B) during cellular respiration. C) when the sodium-potassium pump moves potassium ions into cells. D) when one of ATP's phosphate groups is removed, leaving ADP.
What are the two main greenhouse gases emitted from landfills?
A. VOX and CO2 B. VOX and CH4 C. H20 and CH4 D. CH4 and CO2