Why is the density of air greatest near sea level?
A) The force of gravity on air is greatest at Earth's surface.
B) Air is compressible.
C) Air pressure is at a minimum near Earth's surface.
D) Air is warmest near sea level.
B
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Scientists think that turbidity currents contribute to the formation of submarine canyons
Indicate whether the statement is true or false
Decreasing the sulfur emissions from coal has:
A) contributed to the warming temperatures. B) caused some cooling to occur, but not enough to combat greenhouse gases. C) decreased the amount of acid rain. D) both A and C.
Which of the following illustrates how humans are using fog as a resource?
A) Electronic freeway signs in California's central valley warn of fog hazards. B) Gliders utilize winds from morning glory clouds for recreational purposes. C) Residents in the Atacama Desert in Chile use nets to intercept advection fog. D) Sand beetles harvest moisture from fog in the Namib Desert.
Describe the development of Earth's modern atmosphere from its formation to the present day
What will be an ideal response?