The Sun Has Been on the Main Sequence

question 72

Multiple Choice

The Sun has been on the main sequence

• A) for about 10 million years.
• B) for about 5 billion years.
• C) forever.
• D) for about 14 billion years.

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Definitions:

Psychological Addiction

A form of addiction characterized by a perceived need to use a substance or engage in an activity to achieve a sense of satisfaction or to avoid discomfort, without the physiological dependence associated with substance abuse.

Caffeine

A stimulant compound found in coffee, tea, and various beverages and products, known for its effects on increasing alertness and decreasing fatigue.

Stimulant

A substance that raises levels of physiological or nervous activity in the body.

Narcotic

A class of drugs that produce analgesic (pain-relieving) effects, often leading to drowsiness, and can cause dependence.