The Environment

A long period of time when there is no rain

When ice turns to water

The process of making the air, water or land worse, with chemicals, for example

Convert into reusable material

Keep safe or rescue

The part of the Earth`s atmosphere which protects the earth from the sun

An accident with nuclear power, usually causing radioactivity

When heat cannot escape from the atmosphere and the temperature on Earth goes up

The increase in the temperature on Earth

A large quantity of water that suddenly covers an area

Introduction some harmful things into the water, air, ground etc

An accident when oil comes out of its container, for example at sea