The most precise instrument for measuring wind speed is a ________
A) wind sock B) cup anemometer
C) wet bulb/dry bulb thermometer D) wind vane
B
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A soldier fires a bullet an angle of 10° below the horizontal. At the same time he drops another bullet from the side of the gun. The bullet to hit the ground first is
A. the dropped one. B. the fired one. C. both hit at the same time D. no way to tell
On land, a traveler would notice a decrease in primary productivity by traveling from the tropics to the higher latitudes
Indicate whether the statement is true or false
Which of the following statements about Curitiba, Brazil, is false?
a. Day care centers are free for low-income parents. b. Recycled old buses are used as health clinics and soup kitchens. c. 95 percent of the citizens can read. d. 70 percent of the paper used is recycled. e. Each household owns one very fuel-efficient car.
Since the beginning of the Industrial Revolution, the increased flux of carbon into the atmosphere has been primarily due to ________
A) the addition of phosphate to detergents B) the addition of fertilizers to the soil C) the burning of fossil fuels D) desertification