Form the necessary derivateves from the words on the right and complete the sentences.
1. The weather was very ... : too hot and damp. please,drive,easy,fresh,
2.The ... stopped the car and i could take a picture. pollute,real,govern,home.
3. The exercise is not difficult. i can do it ...
4. We enjoyed the ... of the morning .
5 The water ... all over the world is getting worse and the problem has ... become very serious .
6. The ... should think about the growing number of .... people in big cities.