- If an object reflects light toward the eye then that object can be seen
- A moon is a kind of celestial object / celestial body
- Therefore, if the moon reflects light toward the eye then the moon can be seen

- Eyes are part of a human for seeing
- There are humans on earth
- Therefore, humans on earth can see through their eyes

- If the moon reflects light toward the eye then the moon can be seen
- Humans on earth can see through their eyes
- The moon reflects sunlight towards the earth
- So, the moon can be seen by the humans on earth

Hence, the moon can be seen by the humans on earth
[Question]What is the main reason we can see the Moon?
[Context]- If an object reflects light toward the eye then that object can be seen 
- The moon reflects sunlight towards the earth 
- A moon is a kind of celestial object / celestial body 
- Eyes are part of a human for seeing 
- There are humans on earth