Question

Which statement best describes the effect of the low density of frozen water in a lake?

Water removes thermal energy from surrounding land, causing the land to freeze.

Water freezing on the top floats and provides insulation to the organisms living below.

Water in the lake freezes from the bottom up, killing all organisms.

Water freezing contracts the water and causes levels to decrease.

Answer 1

Answer:

Water in a lake freezes from the bottom up, killing most aquatic organisms. When water in a lake freezes, it floats, providing insulation for organisms below.

Specific heat capacity and heat of vaporization of water. ... That means water expands when it freezes. ... and the slow- cooling water can release heat to nearby land during the night.

Water freezes from the top down—which allows ice to float—because of a strange quirk in how water's density behaves at falling temperatures. ... For example, a pocket of warm air rises and expands because it is less dense than the cooler air around it.

During the winter many aquatic organisms that live in our lakes hunker down, ... If water were most dense as a solid, lakes would freeze from the bottom up, eventually freezing solid.

Water is one of the few exceptions to this behavior. When liquid water is cooled, it contracts like one would expect until a temperature of approximately 4 degrees Celsius is reached. After that, it expands slightly until it reaches the freezing point, and then when it freezes it expands by approximately 9%.

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Answer 2

Low Density of Frozen

Explanation:

   (c) Water in the lake freezes from the bottom up, killing all organisms

• Water removes thermal energy from encompassing area, generating the land freeze
• Water freezing on the top floats and gives protection to the life forms living below
• Water in the lake freezes from the bottom up, killing all living organism. Water freezing gets the water and makes levels to decrease
• The gravitational weight of all the water higher up in the lake pushes down on the water somewhere down in the lake
• The weight permits the water close to the bottom of the lake to get cold without extending and rising