Which of the following is a type of ice?

• A. Frazil
• B. Wind
• C. Go
• D. Thermal Crack

Answer: (A)

Frazil ice forms in cold, turbulent water as tiny ice crystals. In rivers or fast-moving sections of lakes, water can become supercooled and churned, causing slender crystals to develop and float. These crystals cluster into frazil ice, an early stage of ice formation before a solid, continuous sheet forms. It helps explain why this is considered a type of ice.

The other options aren’t ice types: wind is a force acting on ice, not a form of ice itself; “go” isn’t a recognized ice type; a thermal crack is a crack that develops in ice due to temperature changes, not a type of ice.