Answer: 14 more points
Explanation: Good luck! :D
Brayden and Gavin scored 49 points in all
Cole and Freddy scored 63 points in all.
63 - 49 = 14
The correct answer is B. Oxygen.
Oxygen, as a part of the atmosphere, also participates in UV protection, besides being necessary for breathing.
A) Vibrations
Sounds vibrate the eardrum
The three major types of pollution are air pollution, water pollution, and land pollution. Sometimes, air pollution is visible. A person can see dark smoke pour from the exhaust pipes of large trucks or factories, for example. More often, however, air pollution is invisible.
There would be 40 units of energy left, because 10% is lost each time.
