Question 6

Why are rivers important for the country’s economy?

Answer

The rivers are important for the country economy because: rivers are the source of natural fresh water which is required for the survival of most of the animals including the human beings. The water from the rivers is used for several domestic, industrial and agricultural purposes. The presence of rivers boosts the trade and commerce by helping in the easy transport of goods. They are also the potential sources of energy. The water from rivers is used for running hydro-electric dams and is also used for navigation and transport thus, important for commercial activities also. It also provides fishing and great scenic and recreational value. Thus, serves as good tourist spots.

Recently Viewed Questions of Class 9 Social Science - Contemporary India

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Answer the following questions briefly.
(i) What is meant by a water divide? Give an example.
(ii) Which is the largest river basin in India?
(iii) Where do the rivers Indus and Ganga have their origin?
(iv) Name the two headstreams of the Ganga. Where do they meet to form the Ganga?
(v) Why does the Brahmaputra in its Tibetan part have less silt, despite a longer course?
(vi) Which two Peninsular rivers flow through trough?
(vii) State some economic benefits of rivers and lakes.
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Distinguish between
(i) Converging and diverging tectonic plates
(ii) Bhangar and Khadar
(iii) Western Ghats and Eastern Ghats
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Answer the following questions briefly.
(i) Why is the rate of population growth in India declining since 1981?
(ii) Discuss the major components of population growth.
(iii) Define age structure, death rate and birth rate.
(iv) How is migration a determinant factor of population change?
Q:-
Give an account of the Northern Plains of India.
Q:-
(i) Migrations change the number, distribution and composition of the population in
(a) the area of departure (c) both the area of departure and arrival
(b) the area of arrival (d) none of the above

(ii) A large proportion of children in a population is a result of
(a) high birth rates (c) high death rates
(b) high life expectancies (d) more married couples

(iii) The magnitude of population growth refers to
(a) the total population of an area
(b) the number of persons added each year
(c) the rate at which the population increases
(d) the number of females per thousand males

(iv) According to the Census 2001, a “literate” person is one who
(a) can read and write his/her name
(b) can read and write any language
(c) is 7 years old and can read and write any language with understanding
(d) knows the 3 ‘R’s (reading, writing, arithmetic)
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Give reasons as to why.
(i) Seasonal reversal of wind direction takes place over the Indian subcontinent?
(ii) The bulk of rainfall in India is concentrated over a few months.
(iii) The Tamil Nadu coast receives winter rainfall.
(iv) The delta region of the eastern coast is frequently struck by cyclones.
(v) Parts of Rajasthan, Gujarat and the leeward side of the Western Ghats are drought-prone.
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What are the advantages of having a healthy population?
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Below are given names of a few lakes of India. Group them under two categories – natural and created by human beings.

(a) Wular (b) Dal
(c) Nainital (d) Bhimtal
(e) Gobind Sagar (f) Loktak
(g) Barapani (h) Chilika
(i) Sambhar (j) Rana Pratap Sagar
(k) Nizam Sagar (l) Pulicat
(m) Nagarjuna Sagar (n) Hirakund
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Which are the major physiographic divisions of India? Contrast the relief of the Himalayan region with that of the Peninsular plateau.
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Distinguish between population growth and population change.

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Why are rivers important for the country’s economy?

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