Question

Diatoms are also called as ‘pearls of ocean’, why? What is diatomaceous earth?​

Answer 1

Answer:

• Diatoms are the chief producers in marine environments. Hence they are also called the pearls of the ocean. The diatoms cell walls are composed of silica, thus they leave behind a large amount of deposit.
•  Having silica in them the deposits are gritty in nature and hence called as the diatomaceous earth.

Answer 2

. Diatoms are the main producers in marine environment. So, they are also known as the 'pearls of ocean'. As walls of diatoms are made of silica, they do left behind a large amount of cell deposits in their habitat. This accumulation is called diatomaceous earth.

. Diatomaceous earth is a type of powder made from the sediment of fossilized algae found in bodies of water.