Question

The main constituent of marsh
Is

Answer 1

$<marquee><B><I>$
Thanks for asking question.
$</marquee><B><I>$
$<marquee><B><I>$
$\huge\ {\blue{Answer:}}$
$</marquee><B><I>$

The main constituents of Mars are:
$CO_{2} :- 95.32%$
$N_{2} :- 2.7%$
$Ar :- 1.6%$

$<marquee><B><I>$
Thanks for asking question.
$</marquee><B><I>$