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Correct Answer: C) The carbon cycle.
Correct Answer: B) 1 day.
Correct Answer: D) Seawater with higher pH.
Correct Answer: C) El Nino.
Correct Answer: C) 2.5$^ \circ$C-10.4$^ \circ$C.
Correct Answer: B) The equator.
Correct Answer: B) Winds, ocean temperatures, salinity, and currents.
Correct Answer: B) Strong increase from historical times.
Correct Answer: C) Troposphere.
Correct Answer: B) Higher.
Correct Answer: A) Human activities which make the greenhouse effect stronger.
Correct Answer: C) Earth's temperatures have never been as high as they are today.
Correct Answer: A) By funding independent think tanks.
Correct Answer: C) Cap-and-trade.
Correct Answer: B) Climate.
Correct Answer: D) Less Energy is leaving the earth.
Correct Answer: D) A major reservoir of fresh water will decrease.
Correct Answer: D) It destroys the fish's habitat causing the number of fish to decline.
Correct Answer: C) Communities can be notified to evacuate.
Correct Answer: B) Photosynthesis and Respiration.
Correct Answer: C) Past 25 years.
Correct Answer: B) Snow.
Correct Answer: A) Equator.
Correct Answer: A) The amount of solar radiation reflected.
Correct Answer: A) Decreases.