What are Northern and Southern lights? Explain the phenomenon and discuss their associated impacts on Earth's atmosphere and human activities.
Introduction
Northern and southern lights refer to the Aurora Borealis and Aurora Australis respectively.
13 words
Main Body
Formation of Northern & Southern Lights: Sun emits high energy particles as solar flares. When they reach Earth, earths magnetic field interact with them. Some particles are captured in Earths magnetic field. This energy release leads to several light formations.
Impact of lights on: Interaction with upper atmosphere gas & possible breakdown (O3 ← O2+H2O). Potential widening of Ozone hole due to larger pressure of free radical. Disruption of satellite communications. Impact on electronic devices. Travel may be affected. Certain regions attract more tourists. There are several impacts both positive & negative.
Diagram
A diagram showing interaction with upper atmosphere, gases & possible breakdowns (O3, O2 ← O2+H2O), potential widening of Ozone, hole due to larger pressure of free radical, disruption of satellite communications, impact on electronic devices, travel may be affected. Certain regions attract more tourists. These there are several impacts: both positive & negative.
- Clear explanation of scientific phenomenon
- Attempts to link to impacts
- Identifies both positive and negative impacts
BHAVESH JALPAN
Salient features of World's Physical Geography
Geophysical Phenomena
Aurora
105
Total words
1
Paragraphs