Auroras and Solar Phenomena Exam Review

Front

What altitude do oxygen atoms glow red in the aurora?

Back

200 km

Front

What is plasma made of?

Back

Electrons and positive ions

Front

What color does oxygen glow at high altitudes?

Back

Red

Front

When and where would you find the best views of the auroras?

Back

At night near the poles after a solar flare

Front

What color do nitrogen atoms glow at altitudes of 100-200 km above Earth's surface?

Back

Blue

Front

Define aurora.

Back

A natural light display predominantly seen in high-latitude regions, caused by the interaction of solar wind with Earth's magnetic field.

Front

What causes the colors in auroras?

Back

The colors are caused by different gases in the atmosphere being excited by solar particles.

Front

What is the role of solar flares in auroras?

Back

Solar flares release charged particles that interact with Earth's magnetic field, enhancing auroral activity.

Front

What is the difference between the aurora borealis and aurora australis?

Back

Aurora borealis occurs in the Northern Hemisphere, while aurora australis occurs in the Southern Hemisphere.

Front

What is the primary gas responsible for green auroras?

Back

Oxygen at lower altitudes (around 100 km).