What does "low pressure" indicate regarding carbon dioxide storage?

When discussing carbon dioxide storage, "low pressure" typically refers to conditions under which the gas is maintained at a reduced pressure that allows it to remain stable as a liquid or in a solid state, commonly referred to as dry ice at temperatures around 0°F.

At these low pressures, carbon dioxide can be effectively stored in a liquid form, enabling efficient transport and use in various applications. This specific temperature point helps maintain carbon dioxide in a state that prevents it from reverting to gas form too rapidly, thus ensuring safety and stability during storage.

The other options are not aligned with the characteristics of low-pressure carbon dioxide storage. Room temperature storage would generally not maintain carbon dioxide in a stable condition, nor would high temperatures. Fluctuating temperatures could affect the stability and safety of the stored gas, which is undesirable. Therefore, the controlled low temperature of 0°F is essential for effectively managing carbon dioxide in a low-pressure environment.