The atmosphere.
This could be the magnetosphere, the atmosphere, or the biosphere, depending on your needed reference frame.
The water sphere of earth is the HYDROSPHERE.
the equator is the imaginary line around the earth.
I dont know but the blanket of air that surrounds the earth is the atmosphere!!!!!!!
The lithosphere is the outer layers of the earth surface and surrounds the inner parts of the earth.
This could be the magnetosphere, the atmosphere, or the biosphere, depending on your needed reference frame.
celestial sphere
The imaginary line around which the earth turns is its axis.
The Celestial Globe (or sphere) is an imaginary sphere around our planet, earth. All objects in the sky and space, such as satellites, can be thought inside this invisible sphere.
celestial sphere A+
celestial sphere A+
This imaginary line is called the great circle. A great circle is the shortest distance between two point on a sphere. On a flat map the great circle route takes the shape of the arc of a circle due to the projection method used to fit the path on the earth's sphere to a flat surface.
In the globe it is called the axis. In a sphere it is called the diameter.
The "Oort Cloud".
You just can't. A circle would become a sphere if it revolved around an imaginary axis.
The Equator,assigned at zero degree latitude.
you are part of wich sphere of Earth