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

1. Planting trees can contribute to reducing global warming as trees ____ and absorb CO in the air.

A. capture                   B. pasture                    C. calculate                 D. appear

2. Methane is a far more active ____ than carbon dioxide, but also one which is much less abundant in the atmosphere.

A. climate change       B. emission                 C. greenhouse gas       D. greenhouse effect

3 The government must take measures to cut ____ emissions.

A. vehicle                    B. transportation         C. transfer                   D. convert

4. The low ____ in the Mekong Delta leads to acute saline instruction much deeper than the traditional 30 to 40 km of mainland that is contaminated with saltwater.

A. water level B. salt water                C. water currents         D. sea level

5. Humans ____ atmospheric carbon dioxide concentration by a third since the Industrial Revolution began.

A. had increased         B. were increasing      C. increase                  D. have increased

6. All of the disasters resulted from ____ will continue to have a devastating effect on socio-economic development.

A. ecological balance B. carbon footprint      C. floods         D. climate change

7. The simplest way to reduce your ____ footprint is to cycle to school.

A. carbon                    B. chemical                 C. chemistry                D. dioxide

8. ____ the desalination plant, the company could offer an effective solution to the problem of water scarcity.

A. Being built             B. Having been built   C. To build                  D. Having built

9. Replace all the light bulbs in your home with ____ bulbs.

A. energy-saving         B. energy-save            C. energy-saves           D. energy-saved

10. The public praised the local farmers for ____ millions of trees of the surrounding hills.

A. being planting        B. having planted        C. plant                       D. being planted

11. Leaving your DVD player on standby produces the same carbon ____ each year as the average person of Burundi.

A. emissions               B. releases                   C. eruptions                 D. appearance

12. ____ education normally provides undergraduate and postgraduate education, as well as vocational education and training.

A. Intermediate           B. Primary                   C. Secondary              D. Tertiary

13. It can be quite busy here during the tourist ____.

A. period                     B. phase                      C. stage                       D. season

14. I always enjoy our school ____ to France.

A. excursion                B. journey                   C. trip                          D. travel

15. We usually do go by train, even though the car ____ is a lot quicker.

A. travel                      B. trip                          C. voyage                    D. journey

16. It is not easy at all to get a good job without any ____ qualifications.

A. academic                B. social                      C. great                       D. favourite

17. At the ____ level, you can join three-year or four-year colleges.

A. primary                   B. secondary               C. postgraduate           D. undergraduate

18.________ means “take in (gas, liquid, heat) from the space or surface around”.

A. capture                   B. absorb                     C. emit                        D. release

19. _______ the mixture of gases surrounding the Earth.

A. Carbon footprint    B. greenhouse gas       C. atmosphere             D. gas emissions

20. _____________ goes to a foreign country to study for  period as part of a programme between two institutions.

A. An exchanged student                   B. An undergraduate student

B. A postgraduate student                  D. Highschool student