điền vào chỗ trống các từ đúng 

water pollution ; rubbish ; deforestation ; soil pollution ; air pollution ; noise pollution ; water level ; reduce ; reuse ; recycle.

1, ........................................... happens when water in the rivers , lakes , seas is dirty.

2, if the earth is warmer , the ....................................... will rise .

3, the things you throw away is called.......................................

4, ............................................ causes hearing and sleeping problem.

5, ............................................ causes floods ang makes animals' home disappear

6, ................................ means using somethings again.

7, you should walk more to ....................................... air pollution .

8, we can ............................................................ paper , glass , plastic bottles ...

9, ........................................ makes plants die and causes lack of food.

10, .................................................. causes breathing problems and makes the earth warmer.

fill in the blanks with the correct words

water pollution rubbish deforestation soil pollution air pollution

noise pollution water level reduce reuse recycle

1................happens when water in the rives,lakes,seas is dirty.

2 If the Earth is the warmer , the ..............will rise.

3................causes hearing and sleeping problem.

4 The things you throw away is called .............

5.................causes floods and makes animals'home dissappear

6...............means using somethings again.

7. You should walk more to............air pollution

8. We can.............paper , glass, plastic bottles...

9................makes plants die and causes lack of food.

10..............cause breathing problems and makes the earth warmer

People need to breathe. If we don't breathe, we will die. But how clean is the air people breathe? If they breathe (1)............air, they will have breathing problems and become ill. Plants and animals need (2)..........air too. A lot of the things (3)...........our lives create harmful gases and make the air dirty, like cars, motorbikes and factories. Dirty air is called "polluted air". Air pollution can also (4)...........our Earth warmer. The problem of air pollution started with the burning of coal homes (5).............factories.

Trả lời dùm mình câu 1 thôi 

Dựa vào từ cho sắn , viết câu hoàn chỉnh:

1, If/people/not/stp/dumping/waste/into/rivers/,/pollution/increase/.

2,If/polar/ice caps/melt/,/huge landmasses/ be/under/water.

3, If the air,/in/city/be/polluted/,it/can/cause/peole's/respiratory/problems.

4,If/smog/be/frequently/formed/in/city/,/it/cause/dificulty/in/breathing/headache/even/lung cancer,

5, If/ carbon monoxide/concentrate/in/great/amounts/,/it/be/ harmful.

6, The climate/change/if/more trees / be /cut/down/for/hardwood/.

7, If/we/not/control/pollution/soon/,/it/be/too/late.

8, If/we/not/protect/frontier/,/we/suffer/many/from/natural/disasters.