Question
Which of the following pollutants is not covered under
India’s National Ambient Air Quality Standards (NAAQS)? ÂSolution
Explanation: NAAQS, revised in 2009, set permissible limits for 12 key pollutants including PM 10, PM 2.5, SO₂, NO₂, CO, O₃, lead, ammonia, and benzene. CFCs are regulated under global treaties like the Montreal Protocol , not domestic air-quality norms.
The silk fibres are held together in cocoon by a substance known as
Which country is known as the land of thunder bolts?
How is thermal efficiency different in diesel and petrol engines?
When a cross is made between offspring and its recessive parent , it is known asÂ
Which of the following schemes promotes Organic farming through the adoption of the organic village by cluster approach.
What is the name of the group of fungi which lead to spoilage of food having high sugars and high salt concentration like dried fruits, jam, honey?Â
Separating grain from chaff is called:
Malpighian tubules are excretory structures found in the excretory system of certain organisms. Which of the following statements about Malpighian tubul...
While complete biodegradation of metals is not feasible, the concept of ________ is considered a valid approach in effectively managing metal pollution.
A destructive polyhedrosis disease of silkworm that is related to wilt and is marked by spotty yellowing of the skin and internal liquefaction also call...
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