unit 10-2

Most of the air pollution results ____ the burning of fossil fuels, motor vehicles, factories, aircraft and rockets.

• in

• to

• from

• on

Giving the correct form of word:

Voice _________is the app which helps some types of smartphone attracts customers (RECOGNIZE )

Choose the best answer A, B, C or D to complete the sentences.

___________is a term that refers to the existence of different kinds of animals and plants which make a balanced environment.

• Wildlife

• Biodiversity

• Challenge

• Investigation

Do you think deforestation can lead _____ many environmental problems?

• to

• in

• from

• for

5. Two examples of renewable energy sources are ____________ and solar power.

• a quarter

• Costa Rica

• wind

• Ecotourism

You ............ help the local people if you buy local products whenever possible and pay a fair price for what you buy.

• could

• would

• wouldn't

• will

• preservation

• deforestation

• watering

If I had known it in advance, I wouldn’t have said such things

• zero

• 1 conditional

• 2 conditional

• 3 conditional

• mixed conditional

If you ____________ a minute, I'll come with you.

• wait

• had waited

• waited

• would wait

If you ______________ the young boy this stick, he would hurt himself.

• gives

• give

• gave

• had given