Greenwich mean time (GMT) is a system of
A. determining when daylight savings time should go into effect.
B. coordinating the rules for what time should appear on a clock, around the world.
C. determining what years should be considered leap years and which should not.
D. identifying the phase of the lunar cycle.
Answer: B
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Sources of renewable ocean energy include all of the following except ________.
A. algal biofuels B. salinity and thermal gradients C. wind, wave, current, and tidal power D. methane hydrates extracted from the deep ocean
An ordinary cell thunderstorm ____
A) does not produce lightning or thunder B) has a tilted updraft and downdraft C) typically forms on warm, humid days D) does not produce hail
Which of the following best exemplifies land use intensification?
A) Buying an acre of prairie near your suburban home, tilling the land, and planting a large vegetable garden B) Tilling up an acre of your lawn and planting a large vegetable garden C) Cutting down an acre of forest on your property, tilling the land, and planting a large vegetable garden D) Clearing an acre of tropical rain forest to create pastureland for your cattle and oxen Haiti and the Dominican Republic share the Caribbean island of Hispaniola. When tropical storm Jeanne hit Haiti and the Dominican Republic in September 2004, over 20 inches of rainfall occurred in 24 hours–more than a third of the rain that typically falls during an entire year. Forestry practices in these two tropical countries have been quite different. While the Dominican Republic's forests remain largely intact, most of Haiti's forests had been removed by 1990 as the rapidly growing population became increasingly dependent on subsistence farming in mountainous regions of the island. Tropical storm Jeanne created a national disaster for Haiti with over 3000 lives lost, but the Dominican Republic experienced very short-lived effects and only 18 deaths.
The most volcanically active body in the solar system is ________
A) Mars B) Io C) Ganymede D) Earth