About what percent of Earth's water can be found in the oceans?
A) 90%
B) 70%
C) 97%
D) 53%
C
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Examples of potentially renewable resources include
A. groundwater, trees in a forest, and fertile soil. B. trees in a forest, animals, and oil. C. fertile soil, air, and fossil fuels. D. coal, groundwater, and plants. E. trees in a forest, fossil fuels, and air.
How much of Earth’s surface is covered by glaciers?
A)1%
B)2%
C)5%
D)10%
E)20%
Which of the following statements is true about a swinging pendulum?
A) Its kinetic energy is greatest when it is at the extreme (the highest point) of its swing. B) Its potential energy is greatest when it is at the extreme (the highest point) of its swing. C) Its kinetic energy does not change as it swings. D) Its potential energy does not change as it swings.
The sheltered or downwind side of an object is the ____
a. windward side b. leeward side c. prevailing side d. isobar