Human activity has had a negative impact on plants and animals around the world. Some people think t

Hello [이름]!

I love your answer, as your English teacher I\'m oblige to check your grammar. You getting the correct grammar rule. Some of your statements/sentences are grammatically correct but logically incorrect.

Teacher Travis.

Human activities tend to ruin the ecosystem and natural environment for convenience.
>>Correct.

>>OR: Human activities tend to ruin ecosystem and natural environment for their own convenience.
 On-going Human activities are good side on human though that effect negative impact on ecosystem.
>>On-going human actives are for their side but it give negative effect to ecosystem.
Despite Human are trying improve the environment, It is hard to recover ruined ecosystem at once.
>>Human are trying to improve the environment, it is hard to recover a ruined ecosystem at once.

>>(Please make a research how to use the word \"Despite\")
 There are so many endangered animals in the world. 

>>Correct.
 Also environmental destruction and pollution are taken for granted including the lack of energy, global warming and so on.
>>Correct.
I have heard that it takes a lot of time and even century to recover the ecosystem.

>>Correct.

>>I\'ve heard that it takes a lot o time even takes century to recover the ecosystem.
 Of course, some actions like plating trees and protecting animals can be taken to bring positive impact for a change.
>>Correct.
But I definitely believe that the first thing is to protect the nature rather than developing technical ways for action.

>>Correct.