What does "reduce" mean?

• using something again

• using something more

• using something less

• collect something

Polluted water can make fish ___________ .

• live

• sleep

• grow

• die

We can use empty ________ to make pencil boxes.

• paper

• bottles

• bulbs

• plastic bag

We shouldn't _________ rubbish on the street.

• throw

• reuse

• wrap

• turn off

Planting more ________ to reduce pollution.

• bushes

• flowers

• trees

• grass

Turn _________ the lights when we go out.

• of

• off

• on

• up

I cannot buy a new computer___________ I save enough money.

• if

• even if

• unless= if .....not

• as if

You will get a good seat if you _________ first.

• come

• came

• have come

• will come

People should stop using so _______ energy.

• more

• less

• many

• much

We can reuse __________ .

• water

• air

• noise

• bottles