When does Earth's perihelion, the point of orbit when it is closest to the Sun, occur?
A) during the Northern Hemisphere's winter
B) during the Northern Hemisphere's autumn
C) during the Northern Hemisphere's summer
D) during the Northern Hemisphere's spring
E) due to Earth's circular orbit, year-round
A
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A sample of 0°C air that is lowered by 1 degree has a pressure that
A. increases by 100/273. B. decreases by 100/273. C. decreases by 1/273. D. increases by 1/273.
Large areas of farmlands, woodlands, and green spaces in the United States have been protected by private, nonprofit groups called
A. urban green space. B. ecologists for conservation. C. debt-for-nature. D. land trusts. E. biosphere conservation.
Why is photosynthesis inhibited at the very top layer of the ocean surface?
a. The salinity is too high. b. There is too much light. c. Oxygen is too low. d. Oxygen is too high. e. There are too many plankton in the water.
Explain how upwelling along the western coast of South America contributes to the dryness of the Atacama Desert in Chile
What will be an ideal response?