It's where people live and work for the entire life as well as the habitat forwhere various animals lived on
This sentence have some grammar errors~
For instance, in Lam Dong, a province in Vietnam, where there used to be numerous trees, they cut down more and more trees to sell and used the land to build more houses and develop the industry.
the "they" in this sentence has no reference~
Unfortunately, last year, a flood happened and killed a large number of people as well as damaged most of factories
maybe this sentence be revised this way would be better: unfortunately, a large number of people are killed and many of factories are damaged because of the abrupt flood
There are too many "there be" sentences in your essay. you may use other sentences to replace some of them~
may this help~