7 Read the text and make it complete with the help of the derivatives that are formed from the words written on the right. Fill in the table at the end of the task.
Lad blood
In many 1.…
2. …
3. …
4. …
5. …
＿ countries industry
… ground, smoke and
gases
dust
harm
＿ influence the air. Air serious ＿ of this kind can be a serious pollute
hazard to health of humans and it may also damage
6. … … metals and stonework. The most
expose
7. …
8. … nuclear 9. … These throw 10.
… form of a

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