In spring the weather is usually ____.

The ice caps are melting because of global ____.

____ rain kills plants.

Planes cause a lot of damage ____ the environment.

There are fewer and fewer tigers because their natural ____ is disapearing.

We should reduce the use of fossil ____.

Orangutans may become ____ because people cut down the trees in the jungle.

Lots of people don't like snowy weather because of the ____ pavements.

A volcanic ____ destroyed Pompei.

They didn't have an umbrella and got ____ wet.

They got lost in the ____ but rescue workers found them.

After raining for hours it started to clear ____.

In Alaska the weather can be rather ____, and you need to be fit to survive it.

In hot weather water ____ quickly.

We should collect rubbish ____.

It hadn't rained for weeks, and the ____ killed a lot of animals.

All bottles should be ____ and then people wouldn't throw them away.

After the tanker shipwrecked, the oil ____ caused a lot of damage.

Yesterday it was ___ hot, 36 degrees Celsius.