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Answer: For one thing, they possess up to 300 million olfactory receptors in their noses, compared to about six million in us. And the part of a dog's brain that is devoted to analyzing smells is, proportionally speaking, 40 times greater than ours. ... So the air we smell just goes in and out with the air we breathe.
Don’t report me bc I sent a photo of a cute dog
Explanation:

Answer:
For one thing, they possess up to 300 million olfactory receptors in their noses, compared to about six million in us. And the part of a dog's brain that is devoted to analyzing smells is, proportionally speaking, 40 times greater than ours. ... So the air we smell just goes in and out with the air we breathe
Explanation: