Khuy?n mãi gi?i thi?u b?n bè: Nh?n th??ng khi gi?i thi?u b?n bè tham gia t?i ?ây.A: Like all Electricity sources, wind farms have some negative environmental impacts. But receiving Electricity from wind farms leads to substantially lessen greenhouse gas emissions than obtaining it from fossil fuels.B??c 4: H?i viên ti?n hành làm theo h??ng d