Because of Van Der Waals force the water molecules attract each other and stick together ...
The dyes <span>changes</span> color because a chemical reaction has takes
place in the medium. When universal
indicator is added to a solution, the color changes which indicate the
approximate pH of the solution. It also means that there is a change in
the concentrations of an acid and a base.
Weak acids and bases are indicators. All indicators are weak acids. An acid-base conjugate pair has different colors. Any indicator changes color when the pH of its solution is 7.
Its chlorophyll pigment would be adapted to utilizing the blude-green spectrum of sunlight for photosynthesis rather than the red spectrum like land plants. This is because red light is absorbed by the oceans and does not reach greater depths (this is why oceans appear blue). These plants would therefore appear red in color.
Plants that live in the oceans have air-spaces in their leaves that that help them stand upright in water. They use buoyancy for structural integrity. This is why even long plants such as kelp seem to be upright in water (but will collapse when put on land).
