CBSE Class 4 Science – Our Environment

Chapter Overview

This chapter explains the importance of the environment, factors affecting it, and ways to protect it.

Important Keywords

• Environment: Everything that surrounds us, including air, water, plants, and animals.
• Pollution: The contamination of air, water, and land by harmful substances.
• Recycling: The process of converting waste into reusable materials.
• Conservation: The protection and preservation of natural resources.
• Deforestation: The cutting down of trees on a large scale.
• Global Warming: The increase in Earth’s temperature due to pollution.