Which of the following carbon reservoirs has the longest residence time: plants, the oceans, or sedimentary limestone?
What will be an ideal response?
Sedimentary limestone, because a carbon atom may spend millions of years in the sedimentary/metamorphic rock reservoir, while it spends a short time (years to millennia) in the other reservoirs.
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Permanent settlements existed prior to the beginning of recorded history around ________ years ago
A) 10,000 B) 1,000 C) 200,000 D) 24,000 E) 5,000
What are barrier islands, and where do they form? How does the sand migrate on barrier islands? What will be an ideal response?
The range of wavelengths where the atmospheric window is lies:
A) between 8 and 12 microns. B) in the visible range. C) between 2 and 6 microns. D) less than 0.4 microns.
On which of these dates would the earth have the most energy available?
A) perihelion B) summer solstice C) aphelion D) vernal equinox