Make a group of 7-10 students and collect data ofAQI (Air Quality Index) of your city or
any nearby city for 30 days.
(1)
(i)
Record changes in AQI during this period of 30 days.
Make a list of air pollutants present in this city.
Find out the causes of the variations in AQI (like weather, local phenomenon like
crop burning, traffic, industry etc.).
Collect information about ill effect of major pollutants on heath.
(IV)
(V)
Suggest some measures to improve AQI in this city.
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The layer of soil which is just below the top-soil is called B-horizon. It is also known as sub-soil. The sub-soil is made up of slightly bigger rock particles than that of top-soil. ... The sub-soil has very little humus (decayed organic matter).
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