. Explain why water has unique properties including high surface tension
and a high boiling point.

Water molecules are polar and form strong hydrogen bonds.

Explanation:

Properties like high surface tension and boiling point are unique to water due to water's polar molecules. This allows water to form very strong hydrogen bonds and give it some different abilities.

since there are no options posted i'll give you a few examples.

a dolphin's flipper, bird's wing, cat's leg.

answer: 20 percent

the fish culture has become a developing commercial practice in developing countries which is already prominent in developed countries of the world. the major fish protein demand is being supplemented in developing countries is   fishing to meet the needs of the growing population. therefore, in some developing nations, the percentage of animal protein from fish in the diet can be as high as 20 percent.