跪求这篇100词英语作文的语法错误,

跪求这篇100词英语作文的语法错误,
The earth is where we rely on to live in.As a volunteer,I attended an activity which was useful for environment .At 8 am.the school gate,I cleaned the garbage where wos in public area.And Then,I wape the surpermarket's windows,watered the park's plants.At last ,I showed some pictures which were helpful for people learning about the significance of protecting environment.
To my opinion,the earth is important to us and we should do songme useful things to protect environment.I hope that everyone can comprehend the significance.

The earth is where we rely on to live.As a volunteer,I attended an activity which is useful for environment .At 8 am.we were informed to gather in front of the school gate.First,I cleaned the rubbish where were thrown in public area.And then,I wiped the surpermarket's windows,and watered the park's plants.At last ,I showed some pictures which were helpful for people to learn the significance of protecting environment.
In my opinion,the earth is important to us and we should do some useful things to protect it.I hope that everyone can understand the significance.
1.where = in which 地球是我们赖以生活的家园,如果用where引导地点状语从句,那么live的后面不要出现介词,如果是用介词加which引导也不需要,这里你原文多加了介词而且介词也没用对 live on the earth.2.8点的时候,按通知我们在学校大门口集合,这是我给你加的,不然你这是拼短语不对.3.garbage主要指厨房垃圾,而rubbish和trash则指日常生活垃圾.4.wipe擦的过去式是wiped不是wape.5.be helpful for sb to do sth.6.learn可做及物动词可以直接接名词,不用加about.7.in my point,固定搭配.8.the earth is important to us and we should do some useful things to protect the earth.这里前文提到是earth 后文应用it指代.9.了解其中的意义,understand the significance就可以了 comprehand太过正式,这个一般指理解难懂的文章,用词不当.
再问： 为什么where引导地点状语从句，那么live后面不能接介词？
再答： i like school where i can study.=i like school,i can study in school,
拿这个做例子，如果要用where引导地点状语从句，那么这里去掉in school 用where 链接就可， 如果你在句子后面加了介词 比如 i like school where i can study in.这样就重复了，这种情况你可以用语感感觉，是很别扭的
如果要用介词加which 那么就应该是 i like school in which i can study.这里的介词使用是根据从句中动词接的介词来确定的