A roller coaster uses the track in this picture. Where will the roller coaster have the most kinetic energy?
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Which of the following is the most likely result of converting forestland to urban development? a.the amount of land available for lumber production decreases. b.fewer trees are needed because cities are made mainly of concrete. c.people discover more efficient ways to grow trees. d. the price of lumber goes down.

Which of the following can be reduced by the use of renewable energy sources? a. social costs b. economic costs c. environmental costs d. all of the above select the best answer from the choices provided a b c d

2. sketch the inside of the bean nodule, and describe or label what you observed with the hand lens.