Protecting the environment starts with small, everyday actions. People can reduce waste by recycling, reusing items, and avoiding single-use plastics. Saving energy and water at home helps conserve natural resources and lowers pollution. Planting trees and protecting green spaces support wildlife and improve air quality. Using public transport, walking, or cycling can reduce harmful emissions and help keep the planet healthy for future generations.

1. It was hard to go outside during the heatwave last week.

2. Air pollution in big cities can lead to serious health problems.

1. Unless this store emergency kits. I'll check the other one

2. If you throw trash into the river, it will become more polluted.

3. The factory is dumping waste in the lake, so it is polluted.