Question

Which of the following effects is produced by the high surface tension of water? Which of the following effects is produced by the high surface tension of water? A water strider can walk across the surface of a small pond. Water flows upward from the roots to the leaves in plants. Evaporation of sweat from the skin helps to keep people from overheating. Lakes don't freeze solid in winter despite low temperatures. Organisms resist temperature changes, although they give off heat due to chemical reactions.

Answer 1

Answer:

A water strider can walk along the surface of earth due to the surface tension of water.

Explanation:

Fluids have a tendency to shrink to minimum possible surface area and this is called surface tension. It usually occurs due to the greater force of cohesion between molecules of same substance when compared to adhesive force between molecules of different substances. Objects with greater densities can float along water surface due to the role played by surface tension.

When insects walk along the water surface they  are pulled down due to gravity. But  the  force of attraction  between the legs of the insect and water molecules is minimal. Thus the surface tension would always tend to maintain the flatness of water overcoming the push by the legs of the strider.  

When the insect’s weight pulls it down , the surface tension pushes it upwards  overcoming this force of gravity. This is how water striders move along the surface of water.