Is soil a product of photosynthesis?

Astone is dropped with no initial velocity from the top of a cliff and hits the ground a time of 3.9 s later. what is the height of the cliff, in units of meters? you may assume that air resistance is negligible. give the answer as a positive number question 15 a figure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 200 o 20.9 12000 o 3.33

Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car

What component of earth’s atmosphere exists entirely as a result of photosynthesis?