Advertisements
Advertisements
प्रश्न
The question has four options. Choose the correct answer:
Sewage is broken down in
पर्याय
primary treatment
secondary treatment
tertiary treatmen
all the above
Advertisements
उत्तर
secondary treatment
APPEARS IN
संबंधित प्रश्न
Give a method for the disposal of household wastes such as left-over food, fruit and vegetable peels, and leaves of potted plants.
What is meant by incineration? for what purpose is it used?
How can the non-useful component be reused?
List the biodegradable and non-biodegradable waste products in your school What are the best ways to get rid of this garbage?
Can you make something useful of these waste material?Powder containers, cold-drink cans, plastic bottles, shoe-box.
Which kind of garbage is not converted into compost by the redworms?
Which of the following features relates to biodegradable substances?
Which one of the following is a biodegradable waste?
