Scientists generally agree that Earth's climate will warm up over the next 50 to 100 years ________ it has warmed in the 20,000 years since Ice Age.
A.so long as | B.as much as |
C.as long as | D.as well as |
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Scientists generally agree that Earth's climate will warm up over the next 50 to 100 years ________ it has warmed in the 20,000 years since Ice Age.
A.so long as | B.as much as |
C.as long as | D.as well as |