I remember learning this last year, i believe the answer is solar radiation! (as answered by the previous person above aha)
Explanation:
1. Oxygen, without oxygen no human can live, In space, there Is zero oxygen
2. Water, Astronauts will definitely need some sort of water since nearly every living thing requires It
The amplitude of a wave is a measure of the amount of energy it carries.
It's the process of blending religions until there all similar.
