Question : Which of the following weeds has been found useful to check water pollution caused by industrial affluents?
Option 1: Parthenium
Option 2: Elephant grass
Option 3: Water hyacinth
Option 4: Both (1) and (2) above
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Correct Answer: Water hyacinth
Solution : The correct option is - Water hyacinth.
Water hyacinth is a perennial free-floating aquatic plant that scavenges organic and inorganic water contaminants and grows rapidly. The plant can clean up to 40% of contaminated water. Waste water from dairy facilities, tanneries, sugar mills, pulp and paper manufacturers, distilleries, palm oil mills, etc. is treated using water hyacinth.
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Question : Which one among the following industries is the maximum consumer of water in India ?
Option 1: paper and pulp
Option 2: Thermal power
Option 3: Engineering
Option 4: Textile
Question : Arsenic problem in India is primarialy due to
Option 1: Overexplotitation of coal in Bihar and Bengal
Option 2: Overexploitationn of arsenopyrite in the hinterland
Option 3: Overexploitation of ground water in the affected areas
Option 4: Overexploitation of surface water in the affected areas
Question : What is the priority zone of the AMRUT (Atal Mission for Rejuvenation and Urban Transformation) mission, which was launched by the Government of India in 2015?
Option 1: Water supply followed by sewerage
Option 2: Electricity and power generation
Option 3: Primary education for all
Option 4: Health care of urban dwellers
Question : Which of the following can be found as pollutants in the drinking water in some parts of India?
select the correct answer using the code given below?
A] Arsenic
B] Sorbitol
C] Fluoride
D] Formaldehyde
E] Uranium
Option 1: B,D and E
Option 2: A,B,C,D and E
Option 3: A, C and E
Option 4: A and C
Question : The waste water management technique that involves the use of micro - organisms to remove or neutralize pollutants from contaminated site is called:
Option 1: Bio sensor
Option 2: Bio magnification
Option 3: Bio remediation
Option 4: Bio concentration
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