Endorphins are a type of short strings of amino acids that are narrowly targeted to perform a specific job. for instance, endorphins specialize in reducing pain.

Endorphins are a type of neuropeptides short strings of amino acids that are narrowly targeted to perform a specific job. For instance, endorphins specialize in reducing pain.

Explanation:

Endorphins are opiod neuropeptides that are produced by the central nervous system. They are natural pain killers that are produced by our body to reduce pain.

They are of 3 types namely, alpha endorphins, beta endorphins and gamma endorphins. All of these specifically bind to the opioid receptors inhibiting the communication of pain signals.

im not intirely sure but i think the anwser is d relative humidity

your answer is going to be physical weathering