Anaerobic digestion
A. produces methane.
B. produces biodiesel.
C. requires oxygen for the reaction to occur.
D. produces ethanol.
Answer: A
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The human population currently totals
A. 87 million. B. 2 billion. C. 4 billion. D. 7.1 billion. E. 10 billion.
The Durban Agreement of 2011 establishes which of the following?
A) holding signers of the Kyoto Protocol to the 2012 deadline B) continued exemption for developing countries such as China C) keeping the same emissions goals as Kyoto D) creating a fund to help less developed countries reach emission reduction goals E) encourage developing countries to use their forests for fuel
Pahoehoe lava flow is characterized by a ropy or billowy surface.
Answer the following statement true (T) or false (F)
Dangerous rapid mudflows around active volcanoes are known as _______________
Fill in the blank(s) with correct word