Answer:
They formed from a cloud of dust and gas.
Explanation:
A nebula is where the formation of stars takes place, so the Nebula Theory would pertain to the planets forming in the same way.
Answer: The answer is A.
Explanation: it reflects and accurate out come of the chemical reaction.
Answer: Gene alterations in gametes
Explanation:
They need lots of lift to fly (so like wind) and they need to go at a certain speed to maintain flying.