----- Nội dung dịch tự động từ ảnh ----- 1. The students are practising their presentation on (environment) __________ protection. 2. More and more people begin to adopt a greener and more (sustain) __________ lifestyle. 3. It is usually caused by the (emit) __________ of particulates or nitrogen dioxide. 4. We are conducting a survey of consumer attitudes towards (organ) __________ food. 5. The natural environment has been (serious) __________ destroyed by human activities.