1
a gradual increase in world temperatures caused by polluting gases such as carbon dioxide which are collecting in the air around the Earth and preventing heat escaping into space.
2
Many species of plants and animals are in danger of/threatened with extinction
3
an organization that fights for the protection of the environment.
4
a sudden violent movement of the Earth's surface, sometimes causing great damage.
5
damage caused to water, air.... by harmful substances or waste.
6
a mountain with a large circular hole at the top through which lava (= hot liquid rock), gases, steam and dust are or have been forced out.
7
an extremely large wave caused by movement of the earth under the sea, often caused by an earthquake
8
unwanted matter or material of any type, often that which is left after useful substances or parts have been removed.
9
a large amount of water covering an area that is usually dry.
10
strong, unpleasant and sometimes dangerous gas or smoke.
