What is the cause of most skydiving accidents?

these are the options

A.Using old or damaged equipment.

B.Weather interference such as wind or rain.

C.Lack of proper training before a jump.

D.Overconfidence and unfamiliarity with advanced types of equipment.

ground wouldnt be clean and the soap wouldnt be dirty

the more fit you are, the faster the recovery. your heart rate drops most sharply in the first minute after you stop exercising; it should then fall about 20 beats a minute—a drop of less than 12 beats a minute is considered abnormal. this “recovery heart rate” is measured as part of an exercise stress test.