Angle of Elevation and Depression

The Angle of Depression is when the angle if leading...?

The Angle of Elevation is when the angle is raising...?

What relationship do the lines Ground Horizon and Horizon form?

What is the line slant/range called? (It is the line that passes through 2 lines)

What angles are formed when the transversal intersects the parallel line?

What is a special property of alternate angles?

Why are angles of elevation and depression equal?