[ Vocabulary ]
energy sources formed over millions of years from the remains of dead organisms
A. energy conservation
B. fossil fuels
C. renewable resources
D. human impact
E. sustainability
Select your answer:
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Grammar › ViewBefore you turn in your test
A. independent clause
B. dependent clause
C. both a dependent and an independent clause
Comparison › View
If we do not take actions, the environment will become ….
A. more and more polluted
B. most polluted
C. more polluted and more polluted
D. the more polluted