The density of gases increases when its ______?

گیسوں کی کثافت اس وقت بڑھتی ہے جب اس کا ______ ہے؟

Pressure increased

Temperature increased

Volume increased

None of these

When the pressure on a gas increases, the molecules are forced closer together, resulting in a higher density.
This is because the volume of the gas decreases as the pressure increases, causing the molecules to be more concentrated.