It is very difficult for an atom to accept a proton. It can only be done under very special circumstances. So A and C are both incorrect. I don't see how D is possible. The atom does lose 1 electron, but how it gets 21 is think air.
The answer is B which is exactly what happens.
Each hour 430 quintillion Joules of energy from the sun hits the Earth.
In a year it is very hard to determine because of the night and different light levels.
answer C is the correct one
Answer:
a.
b.
Explanation:
We are given that
a.We have to find the angle
b. We have to find the speed 
According to law of conservation of momentum
Answer:
A. usually 3 cards a year means you have little or no credit I believe
