I believe that the chemical formula for an acid often begins with H, which means C is your answer.
Your answer is <span>D) The angle of light from the sun as it reflects off the moon and viewed from the Earth's surface because of the way the sun hits the moon one side has to light the other doesn't and when the moon rotates the sun hits another part of the moon.
If you need more help I would be glad to help!
</span>*~"AB84"~*
DO STUFF!!! XD but really you would record there heartbeat per minute and record there normal rate and the rate watching sports!
1 C
2 A
3 D
4 F
5 E
6 B
These are the answers