Multiple choice general knowledge

The hardness of ice is similar to that of concrete.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Mohs hardness of ice is approximately 1.5 (it can scratch calcite but not gypsum). Concrete typically has a hardness of 3-4 on the Mohs scale. These values are not similar - ice is significantly softer than concrete. Therefore the statement is false.

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