It is an ellipse,
no no no
YES
No. The moon takes about 27 days to go around the earth.
It takes 90 min to go around the earth in space.
The moon changes its shape or phase because every day it revolves around the Earth in an elongated path
It is a circle because, the earth is a circle, and the equator stretches all the way around the earth.
An elongated natural depression in the earth bordered by by higher land.
A great circle
It is a circle because, the earth is a circle, and the equator stretches all the way around the earth.
The equator is the only line of latitude that is a great circle because it is the only line that divides the Earth into two equal halves. A great circle is the largest circle that can be drawn on a sphere, and the equator meets this criteria by encircling the Earth's widest point.
no no no
The orbit of the Earth is roughly a circle.
YES. A small circle is simply a circle around the earth that does not fly over the direct opposite place on earth that a plane took off from. A great circle goes full circumference of earth, where a small circle does not. Being a circle they both fly in a constant direction.
This comparable to the perimeter of a circle.
The Earth rotates in not a perfect circle around the sun but in a oval shape.
The Earth rotates in not a perfect circle around the sun but in a oval shape.
Each meridian is a half-circle from the north pole to the south pole of the earth.