Question

1 poir
4) At higher altitudes air
became
*
thicker
O O O
hotter
thinner​

Answer 1

$\huge{\underline{\underline{\sf{\green{Answer:-}}}}} </h3><h3></h3><h3></h3><h3>$

As altitude increases, the amount of gas molecules in the air decreases—the air becomes less dense than air nearer to sea level. ... Air expands as it rises, and the fewer gas molecules—including nitrogen, oxygen, and carbon dioxide—have fewer chances to bump into each other. The human body reacts to high altitudes.