If ancient people were alive and knew about our damaging the environment, they would get really mad.
if somebody was alive and knew about something< >
這是一個連環問題: 燃燒石油導致二氧化碳增加，二氧化碳增加導致溫室效應，溫室效應導致冰層融化、海平面上升。 (請填空)
This is a chain of problems. Burning oil leads to increase in carbon dioxide, which leads to the greenhouse effect, which leads to melting of glaciers, which leads to rising sea leve.下一題 - 不食人間煙火 f我要發問