What hazards are typically associated with compressed gases?

The correct answer identifies several critical hazards associated with compressed gases. Firstly, compressed gases are stored under high pressure, which means that any failure in the containment system—such as a rupture or leak—can lead to rapid gas expansion, resulting in the release of energy that poses explosive risks.

Additionally, if a compressed gas is released in an enclosed space, it can lead to asphyxiation. Gases like nitrogen, carbon dioxide, or helium can displace oxygen in the air, creating an oxygen-deficient environment that poses serious risks to life.

Moreover, there are specific gases that might present additional hazards, including toxic or highly flammable gases, heightening their danger level significantly in various scenarios. Thus, option A comprehensively addresses the primary hazards typically associated with compressed gases in terms of physical danger, potential for explosion, and health risks like asphyxiation.