分析下这句英语的句子结构和语法

The atmosphere主语,is 系动词
as much a part of the earth 表语
as as 这是原级比较.比较的是表语部分.第一个as是副词,第二个是连词.
当副词as修饰形容词时,注意语序,不能写成as a much part of ,much在这里是形容词.so 的用法也一样.
从句,也就是比较部分；as are its soil and the water of its lack ,rivers and oceans .这句其实是一个倒装,its soil and the water of its lack ,rivers and oceans are.把are提前,是为了强调从句主语its soil and the water of its lack ,rivers and oceans .lack应该是lake.