大家不忙时看看这几句话哪里有语法错误，并指正，谢！(前提是尽量少的改动句子结构)

Carbon monoxide from factories and cars polluted aotomesphere extremely.
We heard from the industrial engineer that he was doubting if our plan was fesible.
I'm very clear that her conclusion was based on fact.
A medical team who was composed of three doctors and two nurses went to that village sereval days ago.
That battle in 1861 between north and south broke out, which was known as "America Civil War" in history.

一氧化碳污染来自工厂和汽车非常aotomesphere。
我们听见从工业工程师。他被怀疑是fessibility我们的比赛。
我很清楚,她的结论是以事实为根据的
医疗团队是由三位医生和两名护士去那个村子了几天前。
于1861年在战场,北部和南部爆发,这被称为“美国内战”的历史。

这……

Carbon monoxide from factories and cars extremely polluted aotomesphere.

We heard from the industrial engineer.He had doubt if our play was fessibility.

I'm very clear that her conclusion is based on fact.

A medical team which was composed of three doctors and two nurses went to that village sereval days ago.

That battle in 1861 during north and south broke out, which was known as "America Civil War" in history.