Computer models for the time between 1900 and 1970 can explain warming:
A) mostly natural causes
B) mostly man-made causes
C) there was no warming in that time frame
D) both man-made and natural causes were equally important
Answer: A
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Fill in the blank(s) with the appropriate word(s).
The three eras that have taken place since the end of the Precambrian from oldest to youngest are the
____________________, ____________________, and ____________________. Fill in the blank(s) with the appropriate word(s).
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What does the word smog mean? Explain the difference between Los Angeles-type smog and London-type smog
What will be the ideal response?