This method of soil cultivation reduces soil erosion and runoff
A) swidden farming
B) multi-cropping
C) short fallow
D) conservation tillage
E) truck farming
Answer: D
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Which of the following is the hallmark of a saturated hydrocarbon?
A) a hydrocarbon where carbon has only a single bond to two or more other carbons B) a hydrocarbon that is completely dissolved in water C) a hydrocarbon where carbon has multiple bonds to one or more other carbons D) any molecule that is completely dissolved in a hydrocarbon solvent E) none of the above
Erupting lavas generally have a temperature in the range of 700? to 1200?F. Indicate whether the statement is true or false
Which of the following contains more heat?
A) ?a pot of boiling water B) ?a warm Jacuzzi C) ?a room temperature swimming pool D) ?the Pacific Ocean
Why does the Northern Hemisphere have warm summers? Choose all that apply.
A) The Sun's energy is more concentrated. B) The north pole is tilted toward the Sun. C) Earth is closer to the Sun in June. D) The Sun's rays hit the ground at a more perpendicular angle. E) Days are longer.