janjan3344
翻译？：什么是臭氧层？回答？：A layer in the earth's stratosphere at an altitude of about 10 km (6.2 miles) containing a high concentration of ozone, which absorbs most of the ultraviolet radiation reaching the earth from the sun.
撒野撒野王子
A region of the stratosphere, between 15 and 30 kilometres in altitude, containing a relatively high concentration of ozone; it absorbs most solar ultraviolet radiation A region of the upper atmosphere, between about 15 and 30 kilometers (10 and 20 miles) in altitude, containing a relatively high concentration of ozone that absorbs solar ultraviolet radiation in a wavelength range not screened by other atmospheric components. Also called ozonosphere. 差不多吧～～～呵呵,绝对正确
cHeN&Li$Li
土壤流失Soil erosion 酸雨 acid rain废气排放 waste gas emssion全球变暖globle warming 温室效应 green house effect臭氧层ozonosphere滥伐森林 Deforestation人口暴涨 a bulge of people能源短缺 energy shortage物种灭绝 species extinction
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