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1. Discharging chemical ____ into the environment should be prohibited.
pollutants
2. The ____ friendly products are designed not to harm the natural environment.
environmentally
3. The health of our children is being ____ by exhaust fumes.
endangered
4. Oil spills are having a ____ effect on coral reefs in the ocean.
devastating
5. Germany's coal _____ were concentrated in a few large fields.
reserves
6. Solar energy, air, and water are renewable resources because there is an ____ supply.
unlimited
7. Thousands of people research _______ energy because a breakthrough will change the world and make fortunes.
alternative
8. Air, water, and soil are necessary to the ____ of all living things.
survival
9. The sports officials promised to provide modern ____ for the athletes to train.
facilities
10. The situation raises important questions about ____ among member states of the UN.
solidarity
