A Black Hole Is So Named Because

question 142

Multiple Choice

A black hole is so named because:

• A) the gravitational field is so high that the wavelength of its emitted light is gravitationally redshifted to radio wavelengths.
• B) it emits no visible light because it is so cold, less than 100 K.
• C) no light can escape from it due to its powerful gravitational field.
• D) it is colder that the rest of the universe; that is, its effective temperature is less than 3 K.

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Definitions:

Peripheral Nervous System

The part of the nervous system that consists of the nerves and ganglia outside of the brain and spinal cord, responsible for connecting the CNS to limbs and organs.

Nerve Cells

The basic building blocks of the nervous system, responsible for transmitting information throughout the body through electrical and chemical signals.

Brain

The organ located in the skull responsible for central nervous system functions, including processing, interpreting, and storing information; as well as controlling many body activities.

Autonomic System

Part of the nervous system that controls involuntary bodily functions such as heart rate, digestion, and respiration.