________, a principle proposed by James Hutton in 1785, is often summarized in the phrase, "the present is the key to the past."
Fill in the blank(s) with correct word
Uniformitarianism
Environmental & Atmospheric Sciences
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A soil composed of well-rounded sand grains of uniform size will most likely have a
A. high porosity. B. high permeability. C. low porosity. D. low permeability.
Environmental & Atmospheric Sciences
The relative humidity is often near 100 percent in polar regions
a. True b. False
Environmental & Atmospheric Sciences
The proposition that no two species can occupy the same ecological niche is known as the
A) ecological niche theory. B) symbiosis. C) competitive exclusion principle. D) trophic pyramid theory.
Environmental & Atmospheric Sciences
A tektite is strong evidence that ________ metamorphism has occurred.
A. slow B. contact C. hydrothermal D. regional E. shock
Environmental & Atmospheric Sciences