Question

We can get smell of perfume several metres away why?​

Answer 1

Answer:

The perfume molecules spread out or 'diffuse' through the air. The smell becomes less concentrated but it reaches a great distance - meaning you can smell it from relatively far away. When a perfume is sprayed several metres away from the source, the particles of the perfume diffuses with the particles of the gas.>>>

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Answer 2

Answer:

Urination of adults, as well as infants, is controlled by the neural circuit which is very complex and highly distributed as it involves pathways at many levels of the brain, spinal cord and the peripheral nervous system and is mediated by multiple neurotransmitters.