Section BRead this paragraph and answer the questions. San Francisco has banned natural gas in new residential and commercial buildings. The policy requires that new construction, other than for restaurants, use only electric power. Currently, renewables power 70% of the city’s grid. This ban on gas came shortly after the announcement that commercial buildings over 4,500 sqm in San Francisco must run solely on renewable electricity. Construction was particularly in focus because the building sector alone accounts for 44% of San Francisco’s citywide emissions. This policy was introduced because natural gas is a major source of indoor air pollution, and the change would lead to improved public health outcomes, as well as lower greenhouse gas emissions. Fill in the gap with ONE WORD from the paragraph. 3. Newly built Answer Question 3[input] are the only exception to the new policy.简答题

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