In some countries, the disease burden could be prevented through environmental improvements.
Giải chi tiết:
Đáp án B: In some countries, the desease burden could be prevented through environmental improvements.”( Ở một số quốc gia gánh nặng về bệnh dịch có thể ngăn chặn thông qua sự cải thiện môi trường)
Biogas can be utilized for electricity production, cooking, space heating, water heating and process heating.
Population growth rates vary among regions and even among countries within the same region.