While it's hard to imagine a machine that would do what you say, this essay does seem to be sufficiently well structured, with ideas that are supported by details. I am more concerned by grammar and sentence structure. You're still struggling with verb tense.
In your first paragraph:
If I were a
scientist, I would invent
equipment by which we could
detect the shortcoming of any event which could
be hazardous for our environment.... By this invention the whole of
The sentence in between those two I do not understand well enough to edit. Try to write short, simple sentences. When you catch yourself writing "and" in between two long strings of words, that might be a signal that you are trying to say too much in a single sentence.
Your next paragraph is stronger because the sentences are shorter and your verb tense is more consistent. Even so, I would break the first sentence into two, as follows:Nowadays
, more and more people are using automobiles.
umes out of chemical factories
first of all
Avoid starting sentences with "so." "So" is usually used to introduce a subordinate clause. Putting "so" at the beginning of the sentence often turns what would be a good sentence into a sentence fragment, by making it into a subordinate clause.
In summary, you are doing very well, but still have some work to do.