Answer:
A medium.
<h3>Explanation:</h3>
It's the material the wave is travelling through.
It is different everywhere you look but it's mainly asteroid belt <span />
Hydrogen peroxide in water and adding kool- aid powder to water so the liquid turns red
Answer:
Check the image file attached
Explanation:
All the water on the earth is the same water that has been here since
<h2><u><em>
BRAINLIST </em></u></h2>