Lee y marca la opción correcta para cada oración.
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
Respuestas
Respuesta dada por:
1
1)a
2)c
3)c
4)c
5)d
6)a
7)a
8)d
2)c
3)c
4)c
5)d
6)a
7)a
8)d
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