Advertisements
Advertisements
प्रश्न
List some of the common wastes produced in mining operation and mention how these can be reused.
उत्तर
Common wastes produced in mining operation:
Coal, Dust, Iron, Copper, Zinc, etc.
Reusing of wastes produced in mining operation:
During operation of getting minerals, a large quantity of waste material is produced. This waste material is called mine tailing. It is the left over. The mine tailing can be mixed with materials to produce tiles and masonry cement.
APPEARS IN
संबंधित प्रश्न
Why are some substances biodegradable and some non-biodegradable?
How can the wastes such as paper, plastic and metal objects be disposed of?
Give a reason for the following :
Why is municipal sewage is first separated into degradable and non-degradable wastes?
Match the items in Column I with as many times as possible in Column II.
Column I |
Column II |
1. Cow dung |
(i) Sugarcane |
2. Bagasse |
(ii) Raddiwalas |
3. Old newspapers |
(iii) Manure |
The question has four options. Choose the correct answer:
Sewage water is purified by
The question has four options. Choose the correct answer:
Continuous sewage flow into a stream would lead to
The question has four options. Choose the correct answer:
A huge quantity of sewage is dumped in a river. The BOD will
What type of garbage is thrown in green bins?
Which of the following is the best way for disposal of vegetable and fruit peels?
To what use can you put the following kind of garbage and how?
rotting smelly garbage