Which Is True of Climate Change in Polar Regions

question 105

Multiple Choice

Which is true of climate change in polar regions?

• A) Temperatures have changed less in the polar regions than the middle and low latitudes.
• B) Increased fresh water run off is increasing thermohaline circulation.
• C) Both the temperatures and the rate of temperature rise have risen.
• D) Sea ice cover has increased at 9% per decade since 1978.

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Definitions:

Continental Lithosphere

The solid outer layer of the earth that includes the crust and the uppermost mantle, specific to continents and characterized by its thickness and composition which differ from the oceanic lithosphere.

Magmatism

The geological process involving the generation, movement, and solidification of magma or molten rock beneath the Earth's surface.

Plate Boundaries

Regions where two tectonic plates meet, which can result in geological activity such as earthquakes and volcanic eruptions.

Thermal Disturbance

Localized or widespread change in temperature that affects an area's thermal equilibrium, often caused by geological events.