Question

What is pond scum?

Answer 1

Pond Scum:

1. Enormous quantities of Spirogyra float on the surface of water thus called pond scum.
2. It is known as pond scum because it secretes mucilage continuously by disintegrating pectin from the cell wall's outer layer, which is shiny and slimy in nature.
3. It is caused by a high concentration of certain nutrients, intense daylight, and a warm temperature.
4. Excess nutrients, such as fish waste, decomposing plants, and fertilizers reach into the water which helps the algae to nourish itself and multiply rapidly.