Answer :
Final answer:
A lock is necessary on an outdoor dumpster to prevent pests.
Explanation:
The feature of an outdoor dumpster that is necessary to prevent pests is a lock. By having a lock, it ensures that the dumpster is securely closed, making it difficult for pests such as rats, raccoons, and insects to gain access to the contents. With a locked dumpster, the chances of pests spreading diseases or causing damage are significantly reduced.
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