Understanding Light Sources

What is the most significant natural source of light for Earth?

• The sun

• Stars

• Bioluminescent organisms

• The moon

Which of the following is an example of an artificial light source?

• The sun

• Stars

• Light bulbs

• Fireflies

What is the term used for objects that emit their own light?

• Reflective objects

• Luminous objects

• Non-luminous objects

• Transparent objects

Why is the moon considered a non-luminous object?

• It emits its own light

• It reflects the sun's light

• It is a natural light source

• It is an artificial light source

What process allows fireflies to emit light?

• Nuclear reactions

• Chemical reactions

• Reflection of sunlight

• Electricity