Answer:Water covers about 70 percent of the Earth's surface, but where did it come ... These two pieces of evidence would favor an asteroid origin.
Explanation:
Answer:
20c is ponds cooler that 20 c hotter so its has more oxygen
Explanation:
It doesn't stand for anything, but it's a Latin term that means "instantly" or "immediately". It's directive to medical personnel in a emergency situation
Answer:
it is a wave it is longtidnal wave it only moved in a medium it is not able to move in vacuum i.e if you are in space and talk your voice can't be heard bcz sound doesn't travel in vacuum
if sound doesn't move from one place to another you can't hear it