Answer to Question #238387 in General Chemistry for Zam

Question

1. During the winter, air temperature in the northern parts of the planet can remain below zero degrees celsius for months, howerver , the fish and other animal living in the lakes survive.

Answer 1

Waters greatest density occurs at 4°C so when the temperatures drop below 0°C and ice forms of the lake and asked as an insulator preventing the water below from freezing keeping fish and other animals alive during the winter.