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On one hand(,)
Untill (Until) and unless some strict laws are made by the authority (,)humans are going to destroy the enviornment (environment)
Secondly (,) travelling by various non polluting vehicle(s)
Let’s find out in the next passage.(too casual); rather you can go for (This notion is yet to be considered under certain conditions)
Use punctuations to make writing more effective.
Otherwise, well -written and supported with examples. Keep writing!
Band: 3.5/6
