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.

Environmental & Atmospheric Sciences

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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

Environmental & Atmospheric Sciences

What are barrier islands, and where do they form? How does the sand migrate on barrier islands? What will be an ideal response?

Environmental & Atmospheric Sciences

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.

Environmental & Atmospheric Sciences

On which of these dates would the earth have the most energy available?

A) perihelion B) summer solstice C) aphelion D) vernal equinox

Environmental & Atmospheric Sciences