Melting permafrost is expected to release carbon dioxide into the air, promoting further warming. This is
A) a negative feedback.
B) a positive feedback.
C) a direct thermal circulation.
D) a parameterization.
Answer: B
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Which of the following environmental philosophies is currently the most conventional?
A) conservation B) environmental ethics C) deep ecology D) ecofeminism E) preservation
Red blood cells and white blood cells are produced in
A. spongy bone. B. red bone marrow. C. yellow bone marrow. D. compact bone.
The Senkaku/Diaoyu Islands represent the contested sovereignty of these three nations
A) The Philippines, Indonesia, Australia B) Japan, Russia, The People's Republic of China C) The People's Republic of China, the Republic of China (Taiwan), Japan D) The People's Republic of China, the Republic of China (Taiwan), Australia E) The People's Republic of China, the Republic of China (Taiwan), Russia
Explain how algae blooms form and how they contribute to the creation of dead zones.
What will be an ideal response?