I believe it's aerobic exercise.
Answer:
Most likely centripetal force. Newton's first law states that an object in motion will continue to remain in motion unless acted upon by an outside force. In this case, that outside force is the centripetal force.
Explanation:
Hope this helps :)
Answer:
the answer is 'rectilinear propogation of light'
Explanation:
Root nodules
You can also just find this on google