Answer:
to preserve the integrity of the wildlife refuge, ecosystems and the endangered species.
Explanation:
A national park service manages
Sound can be used to alert us in emergencies. 2. Sound can also be used to help blind people navigate the world better. I’m sorry if these horrible but I tried lol
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Answer:
A pure substance has a definite chemical composition
The correct answer is D. Number of grams of salt per kilometer of water.
