题目内容
Theconsumptionofa gallon gasolinebycar in the US willemit_____kgCO₂.
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Theconsumptionofaliter heating oil by a family willemit_____kgCO₂.
In the medium and long term, a world-wide average emission of maximum ____ tons of CO₂ per person per year must be targeted. This amount is nowadays considered to be the maximum allowed quantity for a sustainable living on earth.
According to the IPCC, around __________% of flora and fauna species evaluated during climate change studies are at risk of extinction. As a matter of fact, more than a million species could face extinction.
___________ is external conditions or surroundings, especially those in which people, animals, and plants live.
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