Question

number of persons enhale or enhance​

Answer 1

Answer:

hii mate.....

Normal respiratory range in adults

The normal respiratory rate for healthy adults is between 12 and 20 breaths per minute.

hope it helps you.....

Answer 2

Explanation:

$<marquee>$

❣️Same physical unit could be too big or too small . ❣️

❣️So, to avoid this problem we use different units.❣️

❣️let us take an example of distance ..❣️

❣️If the distance between two points is❣️

❣️ 1000000m , it will be too Lengthy and❣️

❣️confusing to write the bigger unit . ❣️

❣️hence, we use km here .. 1000km.❣️

❣️ therefore, there are different units of❣️

❣️ same physical quantity.❣️