Question
Choose the most appropriate option for blank no.
4Solution
The word "sustainably" fits best in this context because it refers to actions taken in a way that does not deplete resources and supports long-term environmental health, which is the focus of the passage. Cautiously and carefully suggest more about being cautious in approach but don’t specifically align with environmental practices. Confidently doesn’t make sense in this context, as the sentence is about environmentally conscious behavior, not attitude.
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