1. Хз
2. Environment means everything natural that surrounds you.
pollution means all humanity's and machine's acts that make the environment dirtier.
3. C - reuse, recycle, reduce
4. C - for
5. A/C. ?
6. D. waste
7. landfill - is a place where people put all their rubbish and then it is driven to. (свалка)
durable - is an adjective that means that something won't be broken or spoiled over time. (прочный)
solar - is an adjective and means that something is made by the sun or with its help. (солнечная (панель или что-то еще))
8. 1. geography
2. accident
3. weather
4. danger
9. A
10. тоже хз, нужно самому писать