What causes the Sun's heat?

A. energy release from nuclear fusion
B. energy release from nuclear decay
C. energy release from nuclear fission


Answer: A

Environmental & Atmospheric Sciences

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Rural residents in many parts of the world tend to live longer than urban residents.

Answer the following statement true (T) or false (F)

Environmental & Atmospheric Sciences

Gray whales breed and give birth in ________ in the ________

A) cold high-latitude waters; summer B) cold high-latitude waters; winter C) mild mid-latitude waters; spring D) tropical lagoons; summer E) tropical lagoons; winter

Environmental & Atmospheric Sciences

An example of a major city that is located in an unfavorable location would be

A) New York City. B) Louisville. C) Mexico City. D) Boston.

Environmental & Atmospheric Sciences

Which one of the following processes involves increasing the U-235 content of the ore from 0.7% to 3%?

A. reprocessing B. enrichment C. conversion D. fabrication

Environmental & Atmospheric Sciences