waste rock meaning in Hindi

Examples

1. There is a waste rock overburden of about 33 million cubic metres.
2. There is a waste rock overburden of about 9.5 million cubic meters.
3. Discharge from other tunnels and waste rock dumps accounts for 21 %.
4. Surface mining land consists of linear pits and piles of waste rock.
5. It will also leave waste rock piles as tall as 30-story buildings.
6. Today very little remains except for rubble, tailings and much waste rock.
7. The waste rock will sit there until the next Ice Age.
8. `A lot of waste rock will generate acid, ` Kuypers said.
9. What happens when 400, 000 caribou meet 250 million tons of waste rock?
10. Here, pieces of waste rock were separated from ore by hand and dumped.