關(guān)于我們周圍的空氣的英文作文
Air is around us. We can not see it, smell it, or taste it. But we can feel the wind blow. We can see the wind move waves on the water, clouds in the sky, and tree branches. Wind is moving air.
Without air we could not breathe. There could be no living plants or animals. Because sound travels through air, without air there would be silence. The movement of air can support a large, heavy plane.
Air is a mixture of gases and water vapor. The most important gases in the air are nitrogen and oxygen. 78 percent of the air is made up of nitrogen, and about 21 percent of oxygen. Almost all living things use the oxygen in air. Fire cannot burn without oxygen.
【我們周圍的空氣的英文作文】相關(guān)文章：
我們周圍的污染英語(yǔ)作文10-11
小學(xué)科學(xué)《觀察我們周圍的材料》教案10-09
我們的長(zhǎng)江英文作文10-08
我們的學(xué)校英文作文10-08
周圍的聲音作文11-28
回憶我們的童年英文作文10-08
周圍環(huán)境作文12-23
我周圍的環(huán)境作文10-19
我周圍的環(huán)境作文范文11-15