________________ is caused by fumes, smoke and other things like that.

Sewage dropped by factories or oil spills by the huge ships are one of the most causes of_______________

The thing that goes at the back of the car and pollutes the air is_______________

The increase of the temperature is called _______________

The procedure that hot air goes through ozone layer and cant leave the atmosphere is _______________

The full name of CO2 is _______________

Solar, water and wind are examples of _______________

How do we call animals which are threatened with extinction _______________

When we create something new out of old materials we_______________

All the _______________ is caused mostly by factories, cars and people.

Drought, floods and earthquakes are examples of _______________

When snow or rocks suddenly fall down a hill we have an/a _______________

When there is a lot of water which causes huge problems _______________

If there is no rain for a longer period we can have _______________

When the ground starts to shake and it can destroy buildings we have an/a_______________

We all share surrounding that we should take care of and it is called