unit 7 pollution- lesson 4

Many animals eat it and become sick _________ people throw litter on the ground.

• so

• result in

• because

• however

 Oil spills from ships in oceans and rivers ______________ the death of many aquatic animals and plants.

• lead to

• because

• however

• since

 Households dump waste into the river ___________ it is polluted.

• since

• because

• so

• but

______________ the parents were exposed to radiation, their children have birth defects.

• However

• But

• Since

• so

We can’t see the stars at night _________ the light pollution.

• so

• due to

• but

• however

People cough _________ they breathe in the fumes from cars.

• so

• but

• due to

• because

The soil is polluted,__________ plants can’t grow.

• because

• so

• since

• but

 We won’t have fresh water to drink _______ water pollution.

• so

• because of

• however

• but

We plant trees, _______we can have fresh air.

• because

• so

• since

• or

Factories _________( not dump) waste into rivers if the government fines them heavily.