1. Many countries are implementing policies to _______ from factories and vehicles.

2. Environmental activists are working hard to _______ by planting more trees and protecting existing forests.

3. One effective way to reduce pollution is to _______ by using reusable bags and bottles.

4. Governments and organizations worldwide are collaborating to _______ such as climate change and pollution.

5. Investing in solar and wind power is a significant step to _______ and reduce reliance on fossil fuels.