How
is gravity measured

Gravity is measured by acceleration that it gives to freely falling objects . At Earth's surface the acceleration of gravity is about 9.8 meters ( 32 feet) per second per second. Thus, for every second an object is in free fall, its speed increases by about 9.8 meters per second.

Explanation: blueyedmtngirl from my understanding from astrophysics,there is no unit to measure gravity but its presence can be known.

blueyedmtngirl if I have not answered you to your satisfaction please comment below.

the answer is lactic acid from anaerobic respiration. the acid in lactic acid is what creates sore and burning muscles. if you think about how acid burns that will give you a clue for questions like this.

answer; motor (efferent)neurons;