(a) Diatoms are an important source of food to aquatic animals.
(b) Diatom deposits are often accompained by petroleum fields.
© Diatomite is porous and chemically inert,therefore used in filtration of sugar, alcohols and antibiotics.
(d) It is also employed as a cleansing agent in tooth pastes and metal polishes.
(e) It is also employed as insulation material in refrigerators, boilers and furnaces.