Choose the best answer to complete each of the following sentences.
1. _________ your food in a reusable box if you bring it to school?
2. Global warming refers to an average increase in the Earth’s ___________.
3. We should use reusable shopping bags __________ plastic bags.
4. We saw some local children swimming in a ___________river.
5. Water pollution occurs when pollutants are ___________directly or indirectly into water bodies.
6. If we _________ more plants, we __________soil pollution.
7. If you bring water bottles to a picnic, what __________ type of bottles?
8. Sewage from the factories is the main cause of ________ in this river.
9. This shopping bag is not ________ so I can buy it.
10. You should __________ things that can be recycled in a recycling bin.
