Most of the Matter in the Universe Is Dark Matter

question 66

True/False

Most of the matter in the universe is dark matter.

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Definitions:

Sleepwalking

Sleepwalking, or somnambulism, is a sleep disorder where a person walks or performs other activities while not fully awake.

Slow-Wave Sleep

A deep phase of sleep characterized by slow brain waves, reduced heart rate, and low metabolic activity, crucial for physical and mental restoration.

Benzodiazepine Sedative

A class of psychoactive drugs used to induce sedation, reduce anxiety, and help with sleep by acting on the central nervous system.

Downer

A depressant drug or an event that reduces mood or enthusiasm.