Respuesta :

A muddy floor can be very slippery so if you jump on a muddy floor, you will most likely slip and hurt yourself.

A hard floor will most likely be dry. So when you jump on a hardwood floor, you are less likely to slip. But, you can hurt your knees if you're not careful.

Answer:

Injury can occur

Explanation:

you might be running then you start jumping without putting your heels down, then might get achilles tendonitis in your achilles tendons.

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