Aurora

Auroras are natural light displays visible in the night skies near the poles. They occur when charged particles from the solar wind collide with atmospheric atoms, emitting light. The color of the aurora depends on the type of atom involved in the collision: green for oxygen and red for nitrogen.

Where are auroras typically visible?

• Near the poles

• In the desert

• Near the equator

• In the rainforest

What causes auroras to occur?

• Reflection of sunlight

• Volcanic eruptions

• Charged particles from the solar wind

• Earth's rotation

What happens when charged particles collide with atoms in the atmosphere?

• Light is emitted

• Water is formed

• Heat is generated

• Sound is produced

What color is produced when auroras interact with oxygen atoms?

• Purple

• Green

• Blue

• Yellow

Which atom interaction results in red auroras?

• Helium

• Carbon

• Hydrogen

• Nitrogen