1. Scientists say that if greenhouse gases______,the temperature of the planet_____raise.
a) increase - will b) increases - are c) exists - more d) exist - won't
2. If the Earth's climate____the rainforest____less seasonal rain.
a) change - had b) is colder - will be c) doesn't change - will be d) warms - will get
3. If there_____less rain, Earth____through a never seen Dry Season.
a) are - does go b) will - goes c) is - will go d) Will be - will go
4. If we _____an unusual dry season, the carbon dioxide absorption process_____.
a) has - didn't stop b) stop - will happen c) have - will stop d) stops - happens
5. If absorption process_____,the vegetation photosynthesis____.
a) crease - will be longer b) won't crease - will grow c) doesn't stop - won't increase d) stop - will stop
6. If the vegetation photosynteshis_____,leaves____.
a) stops - will fall b) make - won't fall c) increases - will warm d) fall - stop
7. If____vegetation photosyntesis, carbon dioxides levels____significantly, imcreasing Global Warming and making this new dry season longer. The balance will be turned.
a) there isn't - will raise b) there are - will be low c) there is - won´t raise d) there aren´t - won´t be low
8. If Global warming season_____too long, temperatures____some 15 degrees hotter than now.
a) will be - are b) are - will have c) happen - won´t have d) is - will be
2)c
3)c
4)c
5)d
6)a
7)a
8)d