Environmental problems are becoming more and more serious all over the world. For example, cars have made the air unhealthy for people to breathe and poisonous gas is given off by factories. Trees on the hil ls have been cut down and waste water is being poured continuously into rivers. Furthermore, wherever we go today, we can find rubbish carelessly disposed. Pollution is, in fact, threatening our existence.
環(huán)境問(wèn)題變得越來(lái)越嚴(yán)重的世界各地。例如,汽車(chē)污染的空氣影響了人們的呼吸,工廠(chǎng)釋放污染的氣體,山上的樹(shù)木被砍伐。樹(shù)木在邊境ls一直不斷減少,廢水被倒進(jìn)河流。另外,無(wú)論我們走到今天,我們可以找到垃圾隨意丟棄。事實(shí)上,污染是威脅我們的生存。
環(huán)境問(wèn)題變得越來(lái)越嚴(yán)重的世界各地。例如,汽車(chē)污染的空氣影響了人們的呼吸,工廠(chǎng)釋放污染的氣體,山上的樹(shù)木被砍伐。樹(shù)木在邊境ls一直不斷減少,廢水被倒進(jìn)河流。另外,無(wú)論我們走到今天,我們可以找到垃圾隨意丟棄。事實(shí)上,污染是威脅我們的生存。