8CB_Unit 7

Ships spill oil in oceans and rivers. This leads ______ the death of many aquatic animals and plants.

• to

• in

• from

• at

Households pollute water sources by ______ waste into ponds, lakes, and rivers.

• damaging

• dumping

• losing

• leading

This month's electricity bill is too high _____________ the air conditioner is turned on all the time.

• since

• due to

• although

• because of

All the aquatic plants and animals will die it the factory _______________ dumping poison info the lake.

• will keep

• to keep

• kept

• keeps

A lot of fish has died recently because of the________________ water in this lake

• contaminating

• contaminated

• contaminate

• contaminant

It’s recommended that we become more concerned ……………… the environment around us.

• of

• to

• with

• about

The …………. use of pesticides and herbicides has led to contamination of groundwater in some areas.

• widespread

• occasional

• general

• experimental

Air ……………, together with littering, is causing many problems in our cities today.

• pollute

• pollution

• polluting

• polluted

In many poor nations, there are frequent outbreaks of cholera and other diseases because people there ………….. untreated water.

• drink

• to drink

• drinking

• drank

The road in front of my office is always ……….. when it rains heavily.

• to flood

• flooding

• flood

• flooded