hello tutor pls help me my teacher isn't teaching so i haven't learn anything from this subject

pls make your answer concise and please explain it separately from the concise answer

LIGHT PHENOMENA:

1.1Why is your reflection upside down on one side of a spoon but is upright on the other?

guide:

• Reflection of light on flat vs. curved surfaces
• Concave vs. Convex surfaces or mirrors

2. What is a mirage?

guide:

• Definition of a Mirage
• Refraction or bending of Light

3. Why are clouds usually white and rain clouds dark?

guide:

• How rain droplets affect the reflection of light.

4. Why is the sky blue and sunsets are reddish?

5. Why can't light pass through the human body?