Answer:
It is D
Explanation:
I took the Assignment on Edge.
Joseph Stallin was the most important person for the formation of the Soviet Union.
The air around you has weight, and it presses against everything it touches. That pressure is called atmospheric pressure, or air pressure. It is the force exerted on a surface by the air above it as gravity pulls it to Earth. Atmospheric pressure is commonly measured with a barometer.
Watermelon and rubber bands; shows weakness of how the watermelon has evolved over time?