The primary reason why doctors recommend using tissues, especially when you are under the weather, is because of a particular feature. Tissues can trap germs and bacteria. So when you blow your nose into it or wipe your sweat, it doesn't allow the germs to spread.
The electrochemical communications through the body is the nervous system.
7.5 too, its kinda of ratio, 1cm : 1Km to 7.5cm : x
x will be equal 7.5 km
Look it up on google , i had this same question and google helped me. i can’t remember the answer or i’d tell u
