Question

Heat exhaustion is best defined as
the body's response when it can no longer control its own temperature and you are unable to cool down
the body experiencing painful muscle spasms that can occur during heavy exercise in hot environments
the body's response to a loss of too much water and salt due to excessive sweating
the body's reaction to an immediate change in temperature from cold to hot

Answer 1

the body's response to a loss of too much water and salt due to excessive sweating

(Heat exhaustion results from fluid and electrolyte loss from heavy sweating. Heat cramps are painful muscle spasms; heat stroke occurs when thermoregulation fails and body temperature rises dangerously high.)