Will increase the volume of a gas Decreasing the pressure applied to the gas Decreasing the number of gas molecules Decreasing the size of the gas molecules Decreasing the temperature?

Increasing the volume of a gas is typically achieved by decreasing the pressure applied to it, as per Boyle's Law, which states that volume is inversely proportional to pressure at constant temperature. Decreasing the number of gas molecules would also lead to a decrease in pressure, potentially allowing for an increase in volume if the container size remains constant. However, decreasing the size of the gas molecules or the temperature would not directly lead to an increase in volume; in fact, decreasing temperature generally reduces the volume of a gas.