Which of the following is not considered a mechanism of natural climate change?
A) volcanic eruptions.
B) solar variability.
C) changes in Earth-Sun relationships.
D) the burning of fossil fuels.
E) movement of continents via plate tectonics.
D
Environmental & Atmospheric Sciences
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Curving chains of volcanic islands and seamounts, almost always found parallel to the concave edges of trenches are
called ____________ ____________ Fill in the blank(s) with the appropriate word(s).
Environmental & Atmospheric Sciences
The aurora usually occur more frequently above Maine than above Washington State
a. True b. False
Environmental & Atmospheric Sciences
The worldwide average salinity of seawater is
A) 5‰. B) 35‰. C) 45‰. D) 55‰. E) 75‰.
Environmental & Atmospheric Sciences
The Gulf Stream moves water away from the equator, the Benguela Current moves some of the this same water back toward the equator.
a. true b. false
Environmental & Atmospheric Sciences