What is the consensus about clean coal among environmental analysts?
A. Burning coal will always produce CO2 and mining it is harmful.
B. It is already a reality in other countries like Mexico.
C. It is possible with better technology that will remove CO2 and allow us to mine coal without any impact.
D. If enough money is devoted to it, it could be reality in the U.S. in ten years.
Answer: A
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A spontaneous, inheritable change in an organism's genes is called a ____
A) mutation B) selection C) prokaryote D) genus
The 2014 Panel on Climate Change (IPCC) reported that global climate change is
A) certain and that anthropogenic activities are a major factor. B) likely and it is possible that humans are to blame. C) happening in some regions of the world and in some places people may be to blame. D) still unclear and the evidence and the causes of change require additional studies.
Water must be warmer than ________ degrees Centigrade to support a reef of corals with zooxanthellae.
A. 15 B. 23 C. 18 D. 25 E. 30
Warm air can hold more water vapor than cold air.
a. true b. false