Interstellar Gas Clouds May Collapse to Form Stars If They

question 21

Multiple Choice

Interstellar gas clouds may collapse to form stars if they

• A) have very high temperatures.
• B) encounter a shock wave.
• C) rotate rapidly.
• D) are located near main sequence spectral type K and M stars.
• E) all of the above.

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Definitions:

Pons

A hindbrain structure above the medulla; it regulates sleep and arousal and coordinates movements of the left and right sides of the body.

Hindbrain

Hindbrain is a part of the brain that includes structures like the cerebellum and the brainstem, which are responsible for basic life functions and coordination.

Medulla

A hindbrain structure at the top of the spinal cord; it controls survival functions such as heart rate and breathing.

Hindbrain

The rear division of the brain, responsible for regulating basic life functions such as heartbeat, breathing, and balance.