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प्रश्न
In the E-waste generated by the Mobile Phones, which among the following metal is most abundant?
विकल्प
Copper
Silver
Palladium
Gold
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उत्तर
Copper
संबंधित प्रश्न
Every household produces a lot of material A daily. In one of the methods of disposal B, material A is burned at a very high temperature of about 1000°C in a structure called C. During this process, the organic matter present is removed as D and E whereas F is left behind (which can be dumped in a landfill site).
(a) What is material A?
(b) Name the method of disposal B.
(c) What is structure C known as?
(d) What are (i) D (ii) E, and (iii) F?
(e) This method is especially suitable for the disposal of materials produced by certain institutions. Name such institutions.
Define gaseous waste.
What is biomedical waste?
What is eutrophication?
What is waste disposal?
Discuss the role of an individual to reduce environmental pollution.
______ is the very important step in waste management.
The burning of solid waste in ______ is called incineration.
What is Landfill?
Paheli gave the following ill effects of the practice of burning dried leaves and other plant parts
- Burning degrades the soil.
- Burning produces harmful gases/fumes.
- Precious raw materials to obtain manure at low cost is lost.
- Lot of heat is generated unnecessarily.
The correct reasons of why we should not burn leaves are
