What are the two primary ways sea ice affects climate?
What will be an ideal response?
The ice cover modifies the atmospheric and oceanic temperatures and circulation patterns, and thus climate. The two primary methods are through ice production in the North Atlantic and around Antarctica that contributes to the formation of North Atlantic Deep Water, which is a major factor in driving the oceanic thermohaline circulation. The second major influence of the sea ice cover is through its effect on the energy balance and temperatures through the
ice–albedo feedback and because of its impact on ocean-atmosphere heat exchange.
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If the earth were not rotating:
A) air would move directly from high to low pressure. B) Earth would lose its atmosphere. C) all winds would cease. D) atmospheric pressure would decrease.
The most variable of the atmospheric gases is ____, which can range from 0.02% to 4% by volume
a. oxygen b. nitrogen c. water vapor d. carbon dioxide e. argon
Mafic igneous rocks are ____
a. high in silica and low in heavy minerals b. low in silica and high in heavy minerals c. high in silica and high in heavy minerals d. low in silica and low in heavy minerals e. only low in silica
As a result of the landslide at the Vaiont Dam, northern Italy, in 1963, approximately 3000 people died ________.
A. when slope failure allowed the dam structure to be pushed downstream by the water pressure of the reservoir B. when the landslide impacted and destroyed the dam structure C. as their houses that had been built on the landslide were destroyed D. as a huge wave of water was displaced from the reservoir by the landslide E. as their houses were buried by the landslide