This is called a chemical bond.
<span>Different pressure levels
Hope this helps and please award brainly :)
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I think c and d is the best answers
Explanation:
Reflexes do slow with age. Physical changes in nerve fibers slow the speed of conduction. And the parts of the brain involved in motor control lose cells over time.
Researchers found that the brain's response time begins to decline at age 24. The descent is a slow, but nonetheless, steady one.
Minerals would be a reasonable explanation to this scenario
My opinion is on Minerals
Answer=Minerals