CHAPTER TWELVE: QUESTIONS 1.
What factor least affects the ocean currents? a. Salinity of the ocean b. Earth's rotation c. Precipitation patterns d. Surface winds
2.
According to the thermohaline conveyor belt, what causes water to mix in the way it does near the poles? a. The surface winds draw cold water away from the poles, churning up the water. b. The warm water from the equator rises near the poles from deep inside the ocean. c. Water doesn't mix much in the polar regions. d. Ice is formed, which increases the salinity and density of colder water, so it falls.
3.
What tends to happen when the earth's tilt is less pronounced? a. The equator's become very hot b. The poles become warmer c. The seasons become more extreme d. The earth gradually cools
4.
What makes the wobble of the earth somewhat less predictable? a. Gravitational pull from the gas giant planets b. Gravitational pull from the sun c. Tidal forces due to the effects of the sun and moon on earth d. Sun spots affecting the Earth's climate
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