Question

soil particles, organic compounds, heavy
metals, animal wastes, oil and grease.
CONTAMINANTS PRESENT IN SEWAGE
Sewage is a liquid waste. Most of it is water, which
contains dissolved and suspended impurities.
These impurities are called contaminants. Sewage
is a complex mixture containing suspended solids,
organic and inorganic impurities, nutrients, disease-
causing bacteria and other microbes (Table 18.1).
Table 18.1 The contaminants present in sewage
S.No. Contaminants
Examples​

Answer 1

Answer:

germs is the best example

Answer 2

Answer:

germs and becteria are example