MDCAT Biology MCQ #812

In a freshwater lake during winter, the bottom layer remains liquid, supporting life because water exhibits maximum density at what specific temperature?

MDCAT Biology MCQ #812

  1. Question 1

    Q1. In a freshwater lake during winter, the bottom layer remains liquid, supporting life because water exhibits maximum density at what specific temperature?

    • A) 0 degrees Celsius
    • B) 100 degrees Celsius
    • C) 25 degrees Celsius
    • D) 4 degrees Celsius

    Answer: 4 degrees Celsius

    Explanation: Water reaches its maximum density at 4 degrees Celsius, unlike most liquids that become denser until they freeze. 0 degrees is where it expands.