Questão Q488481 - Língua Inglesa

Question

Consider the sentences below: 1. Global warming ___________ by the greenhouse effect. 2. When ice in the poles melt, sea levels ____________. 3. Carbon dioxide __________ the sun's heat. 4. An American scientist ___________ holes in the ozone layer. Choose the alternative which presents the correct verb forms that complete the above sentences, respectively: Consider the sentences below: 
1. Global warming ___________ by the greenhouse effect. 
2. When ice in the poles melt, sea levels ____________. 
3. Carbon dioxide __________ the sun's heat. 
4. An American scientist ___________ holes in the ozone layer. 
Choose the alternative which presents the correct verb forms that complete the above sentences, respectively:

Gran Questões · Accepted Answer

is caused / rise / traps / has discovered

Gran Questões · Answer

causes / raises / trap / discovered

Gran Questões · Answer

is caused / rises / trap / discovered

Gran Questões · Answer

causes / raise / is trapped / discovered

Gran Questões · Answer

is caused / raise / traps / has discovered

Consider the sentences below: 1. Global warming ___________...