Cellular respiration ________
A) releases carbon dioxide and water
B) involves a net consumption of water
C) requires the green pigment chlorophyll
D) represents a decrease in entropy
E) results in a net consumption of energy
Answer: A
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Mexico City's poor air quality is exacerbated by
A. frequent temperature inversions. B. air temperature that is warmer at the surface than aloft. C. El Nino events. D. winds that sweep down the mountains.
Why is water the most fundamental resource derived from the planet?
A) It has high surface tension. B) Its solid form is ice, another fundamental resource. C) Water is used for drinking and irrigating crops. D) Water weathers rock to form valleys and canyons.
After 1573, most Spanish colonial cities were designed to have
A) neighborhoods built around central, smaller plazas with parish churches and older quarters with narrow, winding streets and cramped residences. B) gridiron street plans centered on a church and plaza, walls around houses, and wider streets than are in the centers of most European cities. C) winding street plans centered on a church and plaza, garden lawns around houses, and wider streets than the centers of most European cities. D) gridiron street plans centered on a church and plaza, walls around houses, and narrower, more winding streets than are in the centers of most European cities. E) a gridiron street plan, a cathedral, and at least 20 parish churches for each city.
The surface pressures at the bases of warm and cold columns of air are equal. Which of the following statements describes what is occurring?
A. Pressure decreases with increasing height at the same rate in both columns. B. The cold air is lighter than the warm air. C. The columns of air contain a different total number of air molecules. D. The weight of each column of air is the same.