For air masses to form fronts, they must collide with each other. B.
The things that birds have attached to their bodies called their wings, a left one and a right one, cause them to have the ability to fly.
Maybe because of global warming and the glacier water melting makING it bigger and deeper. (I hope this is the answer you are looking for)
Answer:
production of new gene combination
Explanation:
cause it doesnt occur during meiosis
