Question

Ice is less dense than water is a well know fact. What if it would have been denser than water?

Select the correct code-

• A. 1 and 2
• B. 2 and 3
• C. 1, 2 and 3
• D. Only 2

Answer 1

The correct option is C

1, 2 and 3

All of the above is correct. When the density of ice will be more (hypothetical) above changes are obvious. With more dense ice, it will not float above the water and bottom up freezing will happen. With more pressure deep down the ocean and further increase due to depth, will make deep oceans to freeze forever. The dense ice will not allow diffusion to take place and hence availability of oxygen will be less, as it is a gas and need gaseous media to diffuse. Hence, plankton’s life will be at threat.