Biology
Correct the following statements by changing the first/last word only.
(a) Some of the electronic wastes may contain valuable metals such as potassium.
(b) Sludge is the gaseous waste of cement industry.
(c) Drains are used to remove gaseous and particulate air pollutants.
(d) Industrial liquid waste is termed as sewage.
(e) Rags are the plant residue left after extracting the sugarcane juice.
Waste Generation & Management
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Answer
(a) Some of the electronic wastes may contain valuable metals such as gold, silver and copper .
(b) Fly ash is the gaseous waste of cement industry.
(c) Scrubbers are used to remove gaseous and particulate air pollutants.
(d) Domestic liquid waste is termed as sewage.
(e) Bagasse are the plant residue left after extracting the sugarcane juice.
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Related Questions
Assertion (A): Electrostatic precipitators remove gaseous air pollutants by attracting them to electrically charged plates.
Reason (R): The electrostatic precipitators can remove upto 90% of particulate matter from thermal plants.
- A is True and R is False.
- A is False and R is True.
- Both A and R are True.
- Both A and R are False.
Name the following :
(a) The solid precipitated material produced during secondary treatment of the effluent, carried out in the Effluent Treatment Plants.
(b) The two types of devices commonly used for removing the particulate air pollutants.
(c) The process of disposal of waste by burning.
(d) The solid waste residue left after burning.
(e) The category of wastes given out from homes.
Match the items in Column I with as many items as possible in Column II.
Column I Column II Cow dung Sugarcane Bagasse Manure Okhla khad Food wastes Lead and cadmium e-wastes Define the terms:
(a) Waste
(b) Fly ash
(c) E-wastes
(d) Composting
(e) Mine tailing