Question

please it's urgent please help
which one of the following gases uses to store
a) carbon dioxide or hydrogen
b) nitrogen and oxygen
c) carbon dioxide and helium
d) helium or nitrogen ​

Answer 1

$\huge\bold\purple{A}\red{N}\green{S}\blue{W}\purple{E}\green{R}$

$\huge\bold\green{\boxed{==}\purple{\boxed{==}\red{\boxed{==}\pink{==}\orange{==}{>}}}}$

$\large\bold{CARBON\:DIOXIDE\:AND\: HELIUM}$