Question

name the region of the atmos phere where most of the atomospheric gases are present

Answer 1

it is in the lowest layer that is troposphere

Answer 2

$\huge\mathbb\purple{HELLO\: DEAR}$

the answer is

$\huge\boxed{\texttt{\fcolorbox{purple}{aqua}{TROPOSPHERE}}}$
where the oxygen, carbon dioxide, Nitrogen, argon is present.