Answer:<u><em>When water freezes, it contracts, decreasing the water level in a lake. 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.</em></u>
Explanation:
The answer is Artificial selection
The answer is B.) buffers
<u>buffers</u> : solution pH :: shock absorbers : vehicle movement
The answer is B.) buffers