Page 39 - Health, Population and Environment Education 10

plastics, solid and liquid wastes here and there in the surrounding. This increases
spreading of insects and germs as well as various diseases like diarrhoea, dysentery,
tuberculosis, malaria, encephalitis, dengue, etc. Similarly, land pollution increases air and
water pollution which seriously affect the food chain, life cycle and balance in ecosystem.

f. Impact on Minerals
Minerals are the metallic and non-metallic
substances which are present on and inside
the earth’s surface. They are non-renewable
natural resources. They are limited in earth.
There is close relationship between people
and the minerals available on earth. Minerals
have close relationship in our day to day
activities. They are used as raw materials in
different industries as well as they are utilized
in development of various infrastructures.

Due to population growth, there is random Fig: 18
increase of settlement areas and other
construction works like roads, hydropower dams, airport, bridges, canal, colleges and
universities, shopping malls, commercial buildings, apartments, colonies, etc. During the
construction works, various metallic minerals like iron, copper, steel, zinc, tin, aluminium
as well as non-metallic minerals like limestone, marble, granite, sand, stone, glass, etc. are
excessively utilized. There is increase in demand of such minerals with the increase of
construction works. Increase in demand of such minerals leads towards excessive mining.
During mining, the crude mineral compounds are explored initially. When the mineral
compounds are exposed to air on land, they cause air and land pollution. Similarly, the
mineral compounds get mixed into water sources leading towards water pollution. People
need to face several problems with different types of pollution. Moreover, excessive use
of minerals disturbs the balance between human beings and environment as well as
evacuation of mineral resources from earth.

g. Increase of Sound Pollution

Sound is produced from different sources.
When there is production of large amount
of sound we feel irritated and the peace and
harmony in the environment are disturbed.
Sound is produced from various human
activities.

Due to population growth, there is increase
in number of people. Increase in crowd leads
towards more production of sound. Similarly,
urbanization and industrialization are
increased with population growth. Extension Fig: 19
of urban areas increases random construction
works. The use of machineries and equipments during construction works increases
GREEN Health, Population and Environment Education Book-10 39