=> Answer: rivers
37-40. We focus on the last four paragraphs which contain the scientists‟ statements
1. The effects of geo-engineering may not be long-lasting.
Key words: effects, not long-lasting.
In the paragraph E, “I think all of us agree that if we were to end geo-engineering on a given day, then the planet would return to its pre-engineered condition very rapidly…” This means that once we end geo-engineering, the effects of it on the planet may end, too. In other words, “the effects of geo- engineering may not be long-lasting”
=> Answer: B
1. Geo-engineering is a topic worth exploring Key words: worth exploring
In the last paragraph, Dr Martin Sommerkorn emphasizes that “Human- induced climate change has brought humanity to a position where we shouldn‟t exclude thinking thoroughly about this topic and its possibilities.”
worth exploring=shouldn‟t exclude thinking thoroughly
=> Answer: D
1. It may be necessary to limitthe effectiveness of geo-engineering projects.
Key words: limit
In the paragraph G, “To avoid such a scenario, Lunt says Angel‟s project would have to operate at half strength; all of which reinforces his view that the best option is to avoid the need for geo- engineering altogether.”
limit the effectiveness=operate at half strength
=> Answer: C
1. Research into non-fossil-based fuels cannot be replaced by geo-engineering.
In the paragraph E, Angel says that his plan is “no substitute for developing renewable energy”, renewable enegry is the only “permanent solution”.
non-fossil-based fuels=renewable energy
cannot be replaced=no substitute for
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