Advertisements
Advertisements
प्रश्न
Name an industry which can cause both air and thermal pollution and as well as eutrophication.
उत्तर
Fertiliser factory.
APPEARS IN
संबंधित प्रश्न
Public all over India is very much concerned about the deteriorating air quality in large parts of North India. Alarmed by this situation the Resident's Welfare Association of your locality organized an awareness programme entitled "Bury not burn". They invited you, being a biology student to participate.
(a) How would you justify your arguments that promote burying and discourage burning? (Give two reasons)
(b) With the help of flow charts, one for each practice depict the chain of events that follow.
Water samples were collected at points A, B and C in a segment of a river near a sugar factory and tested for BOD level. The BOD levels of samples A, B and C were 400 mg/L, 480 mg/L and 8 mg/L respectively. What is this indicative of? Explain why the BOD level gets reduced considerably at the collection point C?
Algal bloom results in ______.
A high Biological oxygen demand (BOD) indicates that ______.
The polluting strength of sewage is usually characterized by its ______.
World’s most problematic aquatic weed is ______.
What is cultural eutrophication?
What is an algal bloom?
What do you understand by biomagnification?
What are the three major kinds of impurities in domestic wastewater?