Which of the following controls the rate of groundwater flow?
A) The slope of the water table
B) The permeability of the rocks
C) How fractured the rocks are
D) All of these are correct.
D) All of these are correct.
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The hottest main-sequence stars are also the most massive
Indicate whether the statement is true or false
Tertiary consumers are usually in which trophic level?
A) decomposers B) 1st trophic level C) 2nd trophic level D) 3rd trophic level E) 4th trophic level
LEED-certified buildings could be described by all of the following, except ________
A) reduce the ecological footprint of the building B) energy efficient C) construction costs much less than for conventional buildings D) limit pollution and recycle wastes E) built with sustainable materials
Which of the following is true?
A) The Sun emits longwave radiation, whereas the Earth emits shortwave radiation. B) The Sun emits shortwave radiation, whereas the Earth emits longwave radiation. C) The radiation emitted by the Sun and the are roughly the same wavelength. D) Because the Sun is so far away, it is impossible to measure the wavelengths of its radiation.