Hello!
The amount of water in a river varies for each particular area. Whether the area has been receiving rainfall or a drought.
Seasons also play a role; if it's Spring, you may receive more rainfall and have a higher water levels. If it's Summer, you may experience a drought, causing lower water levels.
Although that was not very much information, I thought I'd provide a small bit of information. Hope it helps. :)
Answer:
This is what we call Potential Energy and Kinetic Energy
Explanation:
If the bowler is rolling a ball, let's say 5 LBS, It should travel at normal speed.
The speed is also dependent on how the bowler throws the ball.
If they were to change the weight of the ball. It would most likely slow the ball down more, as it would be too heavy to go as fast if it was a lightweight ball.
It's like a person. The bigger and heavier they are, the slower they will move with their own consecutive speed. If they are lighter, they'll most likely go faster
This particular method of heat transfer is known as C. Radiation. Certain radiation is coming from the sun, to heat the atmosphere of the planet.
Skin pigments actually protect us from ultraviolet rays!