Correct Answer: Carbon Dioxide

Solution : The correct answer is Carbon Dioxide .

The formation of dry ice, solid Carbon Dioxide (CO ₂ ), is based on the principles of sublimation and temperature. Carbon dioxide undergoes pressurization and cooling, transitioning directly from a gas to a solid through sublimation. This occurs at around -78.5 degrees Celsius (-109.3 degrees Fahrenheit). The resulting solid CO ₂ , known as dry ice, is collected and compressed into blocks or pellets.