Please Define the Following Key Terms

question 17

Short Answer

Please define the following key terms.
- Plains Indians

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Definitions:

Ocean Currents

Large-scale movements of water within the oceans that play a critical role in regulating the Earth's climate by distributing heat around the planet.

Asthenosphere

The semi-fluid layer of the Earth located below the lithosphere, allowing for plate tectonic movement.

Inner Core

The Earth's innermost layer, composed mainly of iron and nickel, solid due to extremely high pressure despite its high temperature.

Outer Atmosphere

The outermost layer of Earth's atmosphere, extending beyond the mesosphere, primarily composed of extremely low densities of hydrogen, helium, and other lighter gases.