Answer:
wings flap up and down
Explanation:
when they fly their wings need air so they can fly
They must be awake to breathe.
Answer:
the picture is not clear enough to see
The answer to your question is,
A prime meridian is a meridian in a geographic coordinate system at which longitude is defined to be 0°. Together, a prime meridian and its antimeridian form a great circle. This great circle divides the sphere, e.g., Earth, into two hemispheres.
-Mabel <3