Multiple choice

Ice formed over lake

  1. has very high thermal conductivity

  2. has very low thermal conductivity & retards further formation of ice

  3. prevents quick convection current

  4. is very good radiator
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ice is a poor conductor of heat, meaning it acts as an insulator. Once a layer of ice forms on a lake, it slows down the transfer of heat from the warmer water below to the freezing air above, retarding further ice formation.

Keep practicing — related questions