Q23 of 805 Page 1

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.


(a): Following arguments can be promoted to promote burying and discourage burning:

• Burning wastes may result in generation of various gases like CO2, and oxides of nitrogen and sulphur, these gases are very harmful and cause various environmental issues like global warming, acid rain, etc…..


• The smoke release in atmosphere may causes serious health hazards like asthma, emphysema, nausea, headache, etc……


• Burying the waste does not have any harmful effect , in fact when we bury organic wastes , the soil becomes enriched with nutrients.


(b): Before burying of wastes following set of events must be followed:



The solid wastes are of two types:


1. Biodegradable waste


2. Non-biodegradable waste


Biodegradable waste can be degraded by the microbes, e.g-organic waste paper, etc…..


Non-biodegradable waste cannot be degraded by the microbes and can remain as such for long periods.e.g-plastic….



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