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Class 9
Social Science - Contemporary India
Drainage
why are rivers important for the country rsquo s e...

Question:
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.

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Popular questions of class 9 Social Science - Contemporary India

Write short notes on the following.
(i) The Indian Desert
(ii) The Central Highlands
(iii) The Island groups of India

Describe the regional variations in the climatic conditions of India with the help of suitable examples.

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.

Why does the rainfall decrease from the east to the west in Northern India.

Name different types of Vegetation found in India and describe the vegetation of high altitudes.

The central location of India at the head of the Indian Ocean is considered of great significance. Why?

Answer the following questions briefly.
(i) What are the controls affecting the climate of India?
(ii) Why does India have a monsoon type of climate?
(iii) Which part of India does experience the highest diurnal range of temperature and why?
(iv) Which winds account for rainfall along the Malabar coast?
(v) What are Jet streams and how do they affect the climate of India?
(vi) Define monsoons. What do you understand by “break” in monsoon?
(vii) Why is the monsoon considered a unifying bond?

Give the characteristics and effects of the monsoon rainfall in India.

Describe how the Himalayas were formed.

Discuss the mechanism of monsoons.

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Recently Viewed Questions of Class 9 Social Science - Contemporary India

Choose the right answer from the four alternatives given below.

(i) Which one of the following describes the drainage patterns resembling the branches of a tree?
(a) Radial (c) Centrifugal
(b) Dendritic (d) Trellis

(ii) In which of the following states is the Wular lake located?
(a) Rajasthan (c) Punjab
(b) Uttar Pradesh (d) Jammu and Kashmir

(iii) The river Narmada has its source at
(a) Satpura (c) Amarkantak
(b) Brahmagiri (d) Slopes of the Western Ghats

(iv) Which one of the following lakes is a salt water lake?
(a) Sambhar (c) Wular
(b) Dal (d) Gobind Sagar

(v) Which one of the following is the longest river of the Peninsular India?
(a) Narmada (c) Godavari
(b) Krishna (d) Mahanadi

(vi) Which one amongst the following rivers flows through a rift valley?
(a) Mahanadi (c) Krishna
(b) Tungabhadra (d) Tapi

Give an account of weather conditions and characteristics of the cold season.

(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)

Describe how the Himalayas were formed.

The central location of India at the head of the Indian Ocean is considered of great significance. Why?

Choose the right answer from the four alternatives given below:

(i) To which one of the following types of vegetation does rubber belong to?
(a) Tundra (c) Himalayan
(b) Tidal (d) Tropical Evergreen

(ii) Cinchona trees are found in the areas of rainfall more than
(a) 100 cm (c) 70 cm
(b) 50 cm (d) less than 50 cm

(iii) In which of the following state is the Simlipal bio-reserve located?
(a) Punjab (b) Delhi
(c) Odisha (d) West Bengal

(iv) Which one of the following bio-reserves of India is not included in the world
network of bioreserve?
(a) Manas (c) Gulf of Mannar
(b) Nilgiri (d) Nanda devi

Choose the correct answer from the four alternatives given below.
(i) Which one of the following places receives the highest rainfall in the world?
(a) Silchar (c) Cherrapunji
(b) Mawsynram (d) Guwahati

(ii) The wind blowing in the northern plains in summers is known as:
(a) Kaal Baisakhi (c) Trade Winds
(b) Loo (d) None of the above

(iii) Which one of the following causes rainfall during winters in north-western part of India.
(a) Cyclonic depression (c) Western disturbances
(b) Retreating monsoon (d) Southwest monsoon

(iv) Monsoon arrives in India approximately in:
(a) Early May (c) Early June
(b) Early July (d) Early August

(v) Which one of the following characterises the cold weather season in India?
(a) Warm days and warm nights
(b) Warm days and cold nights
(c) Cool days and cold nights
(d) Cold days and warm nights

Why does the rainfall decrease from the east to the west in Northern India.

Choose the right answer from the four alternatives given below.
(i) A landmass bounded by sea on three sides is referred to as
(a) Coast (c) Peninsula
(b) Island (d) none of the above

(ii) Mountain ranges in the eastern part of India forming its boundary with Myanmar are collectively called as
(a) Himachal (c) Purvachal
(b) Uttarakhand (d) none of the above

(iii) The western coastal strip, south of Goa is referred to as
(a) Coromandel (c) Kannad
(b) Konkan (d) Northern Circar

(iv) The highest peak in the Eastern Ghats is
(a) Anai Mudi (c) Mahendragiri
(b) Kanchenjunga (d) Khasi

Question:
Why are rivers important for the country’s economy?

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Question: Why are rivers important for the country’s economy?

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Question:
Why are rivers important for the country’s economy?