The moon's repeated pattern of movement and changes in appearance due to its position relative to the Earth and Sun. The different shapes that the moon seems to have as seen from Earth caused by the moon's orbit around Earth. The sunlight needs a certain place like a certain axis and stuff similar to that.

Answer 1:

There are three major points in the question and their answers are as follows:

A) Lunar Cycle

Explanation  

The moon's repeated pattern of movement and variations in appearance as a result of its position in relation to the Sun and the Earth is called the Lunar Cycle. A lunar cycle spans 29 days, 12 hours, and 43 minutes approximately.

Answer 2:

B) Moon Phases

Explanation  

The various shapes that the Moon seems to have as seen from Earth caused by the Moon's orbit around Earth are caused by the Moon's Phases.

There are 8 phases of the moon they are:

Full Moon

New Moon

First Quarter and  

Last Quarter. These four are referred as to the Major Phases.

The next 4 are referred to as Minor phases. They are the:

The 8 phases are completed in one lunar cycle.

Answer 3:

The sun has an axis upon which it rotates.

Explanation:

The axis of the sun is tilted forward by 7.25 degrees in relation to the earth's axis and rotates once on the same axis over a period of 27 days. The rotation, when examined from the North, is anticlockwise in nature.

Cheers

explanation:

newton's third law, for every action there is an equal and opposite reaction.

if the person is shown to have +90n, then ans is -10n.

if the person is shown to have -90n, then ans is +10n.