Question

why we get the smell of perfume sitting several meters away​

Answer 1

Answer:

The process of diffusion spreads the smell of perfume in the room

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.