These temperature data show that since the 1880s
A. temperatures have risen 6° C.
B. insufficient data exists to definitively state global warming has occurred.
C. temperatures have remain unchanged.
D. temperatures have risen around one degree C.
Answer: D
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Why is water vapor not implicated in climate change as methane and carbon dioxide are?
A. The concentration of water vapor in the atmosphere has remained relatively constant despite changes in human activities. B. Water vapor is a liquid, not a gas, so it precipitates out of the atmosphere frequently. C. Water vapor is not a greenhouse gas. D. Carbon dioxide and methane are not just greenhouse gases, they are also toxic to most organisms.
A formal region is:
A) derived from people's sense of identity and attachment to different areas. B) nonexistent in developing nations. C) an area that possesses one or more unifying cultural or physical traits. D) an area unified by a specific social, cultural, or economic activity. E) an area that possesses only one specific cultural trait.
Where in the mitochondrion is proton-translocating ATPase located?
A) in the intermembrane space B) in the matrix C) on the inner membrane D) on the outer membrane
The only planet in the solar system whose axis of rotation lies close to its equatorial plane is ________
Fill in the blank(s) with correct word