Sustainable development is development that meets the needs of the present without compromising the ability of future generations to meet their own needs.
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Answer:
A
Explanation:
Pollution is and can be poisonous to some environment and to organism. It also harms the thing in that environment.
The most clear way would be - "Sam, I don't think stealing things from a shop is ok, it's illegal and you're stealing away the hard work of some people without paying for it".
That should send Sam a clear message that will explain him why stealing is wrong and why he shouldn't be tealing in the first place.
He should reevaluate his workout to see if he needs to add more aerobic exercise or adjust the frequency of his workouts.