英语题目.速回答

题目

英语题目.速回答
1.The ___the air is from the ground ,the ___the air is ( )
A higher up ;thinner B.lower ;thinner C higher up;denser
2.What gas is give off when an object is burnt ?( )
A.Carbon dioxide B. Oxygen C.Hydrogen
3.Which statement is wrong ?( )
A.Plants are important to life .B .Animals and man cannot live without plants .
C. Plants can make food only from air and water .

答案

1.A 海拔越高,空气越稀薄.
2.A 物品在燃烧时释放二氧化碳.
3.C 植物只能从空气和水中获取食物,是错误的,还有土壤等.
这原来不是英语题,是生物化学啊.