Vocabulary
Grammar
100

It’s important to __________ nature so animals have a safe place to live.

look after

100

Zero Conditional

Plants die when they ______ (not get) enough water.

don't get

200

When cities grow too fast without planning, we call it __________.

urban sprawl

200

Zero Conditional 

If cars release too much smoke, the air quality ______ (get) worse.

gets

300

Cars and factories __________ harmful gases into the air.

release

300

Zero Conditional 

When a city doesn’t have many trees, it ______ (not stay) cool in summer.

doesn't stay

400

We should __________ paper, plastic, and glass to help the environment.

recycle/reuse
400

First Conditional 

If we continue to waste water, some countries ______ (not have) enough to drink.

won't have

500

Changing people’s habits can __________ pollution and waste.

prevent

500

First Conditional 

If we plant more trees, they ______ (absorb) carbon dioxide from the air.

will absorb