On this map of the South Atlantic, which letter is on a site of seafloor spreading?
A. A
B. B
C. C
D. D
Answer: C
Environmental & Atmospheric Sciences
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Which of the following nuclear equations correctly describes alpha emission?
A. 
Th ? 
Pa + 
e
B. 
Th ? 
Pa + 
e
C. 
Th ? 
e
D. 
Th ? 
Ac + 
e
E. none of the above
Environmental & Atmospheric Sciences
Assuming a base temperature of 18°C, how many cooling degree-days are there for a day with a maximum temperature of 35°C and a minimum temperature of 18°C?
A. 10 B. 8.5 C. 7.5 D. 5.5
Environmental & Atmospheric Sciences
Determining a discrete threshold level of exposure is most difficult for
A) all carcinogens. B) most acids. C) all salts. D) almost all bases.
Environmental & Atmospheric Sciences
What appears to be a single bolt of lightning is actually a series of rapid return strokes
Indicate whether the statement is true or false
Environmental & Atmospheric Sciences