The Word "Chromosphere" Refers to a

question 96

Multiple Choice

The word "chromosphere" refers to a

• A) dense, spherical interstellar cloud of glowing gas.
• B) layer in Earth's atmosphere just below the ionosphere.
• C) layer in the Sun's atmosphere.
• D) light-emitting region just outside the event horizon of a black hole.

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Definitions:

Nitrogen Cycle

Movement of nitrogen among the atmosphere, soil, and water, and into and out of food webs.

Calcium Cycle

A geochemical cycle involving the movement and exchange of calcium among the lithosphere, hydrosphere, biosphere, and atmosphere.

Nutrient Cycling

The process of the movement and exchange of organic and inorganic matter back into the production of living matter.

Wastes

Wastes are substances or materials that are discarded after serving their primary purpose or are considered not useful.