The colorful natural light display known as the Aurora Borealis, or Northern Lights, is primarily caused by what phenomenon?

Explanation

The Aurora Borealis, or Northern Lights, is primarily caused by charged particles streaming from the sun, known as the solar wind, interacting with Earth’s magnetic field and colliding with gas molecules in the upper atmosphere near the polar regions. These collisions excite the gas molecules, causing them to emit the vivid, shifting colors of light characteristic of the aurora, with different atmospheric gases producing different colors. A similar phenomenon, called the Aurora Australis or Southern Lights, occurs near the South Pole for the same underlying reason. Explore more Everyday Science MCQs on mcqstutor to keep practicing.