Why Is the Light Year a Useful Unit of Measurement

question 24

Essay

Why is the light year a useful unit of measurement for astronomical distances?

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Definitions:

Endogenous Opioid

Natural pain-relieving peptides produced by the body that act on the opioid receptors to reduce pain and induce pleasure.

Exogenous Opioid

Opioid substances introduced into the body from external sources, often for pain management or recreational use.

Metabolic Hormone

Hormones that regulate metabolism, energy storage, and consumption within the body.

Cognitive Impairment

A decline in cognitive functions such as memory, problem solving, and attention, beyond what might be expected from normal aging.