It's called muscle spasticity. Or in common terms, muscle cramp.
Hope this helps.
Nonrenewable sources deal with fossil fuels (coal, petroleum, etc) so renewable would be the sun, water, wind, things that can be replaced
the answer would be A Do not run out because they are renewable
Endocrine system is the answer
Acceleration is defined as the rate of change in the speed of a moving body or vehicle typically.
<u>Explanation:</u>
In the branch of mechanics, the aspect of acceleration is considered to be a property of the vector. And acceleration always occurs in a specific positive direction.
The formula for determining acceleration is change in the rate of velocity over a specific time, and is therefore measured as the ratio of delta velocity by delta time unit.

The unit of acceleration is distance per time unit squared or m / second squared.