Which temperature scale has zero as the point at which water freezes?

• A. Fahrenheit
• B. Rankine
• C. Kelvin
• D. Celsius

Answer: (D)

Verified step by step guidance

1. Understand the question is asking which temperature scale sets zero degrees at the freezing point of water.
2. Recall that the Celsius scale defines 0°C as the freezing point of water and 100°C as the boiling point under standard atmospheric pressure.
3. Recognize that the Fahrenheit scale sets the freezing point of water at 32°F, not zero.
4. Know that the Kelvin scale starts at absolute zero (0 K), which is much colder than the freezing point of water.
5. Remember that the Rankine scale also starts at absolute zero but uses Fahrenheit degree increments, so zero is not the freezing point of water.