Prepare a brief speech on global warming that you have to make in your class.

Continuous increase in temperature of the Earth due to increase levels of greenhouse gases is known as Global warming. Global warming is one of the biggest concern worldwide. Scientists believe climate shifting, melting of glaciers (e.g. Gangotri glacier), sudden floods in coastal areas are due to global warming. The Kyoto Protocol is one such agreement made among the countries to reduce emission of greenhouse gases.
Small contributions on our part can make a huge difference in the state of the environment. We can plant trees and nurture the ones already present in the neighborhood.

https://www.tiwariacademy.com/ncert-solutions/class-8/science/chapter-18/