Question

Inside an aeroplane, flying at a high altitude,
A.the pressure is the same as that outside.
B.normal atmospheric pressure is maintained by the use of air pumps.
C.the pressure inside is less than the pressure outside.
D.normal humidity and partial vacuum are maintained.

Answer 1

HEY MATE HERE IS YOUR ANSWER

OPTION D

About India

➡️ India is 7th largest country in the world

➡️ India is on 2nd position in population vise

➡️ India is 7th largest country in the world



Hope it will help you

Answer 2

Hey mate !!!

Answer :-

Option D is correct.

normal humidity and partial vacuum are maintained.

Hope it helps :)