AKSHARAM INTERNATIONAL SCHOOL

COIMBATORE.
SOCIAL SCIENCE WORKSHEET ANSWER KEY
Geography: Climate
I. Choose the correct option:
1. What is the average temperature of Chennai during winter?
(a) Between 24° - 25° (c) Between 20° - 25°
(b) Between 10° - 15° (d) Between 25° - 35°
2. In winter the western cyclonic disturbances originate from which sea?
(a) Mediterranean Sea (c) Caspian Sea
(b) Indian Ocean (d) Arabian Sea
3. Which area is not an area of low precipitation?
(a) Assam (c) Leh in Jammu and Kashmir
(b) Western Rajasthan and Gujarat (d) Deccan plateau
4. Which is the coldest place in India?
(a) Drass (c) Shillong
(b) Srinagar (d) Bikaner
5. Mango showers occur in which one of the following group of two states?
(a) Karnataka and Kerala (c) Tamil Nadu and Andhra Pradesh
(b) Bihar and West Bengal (d) Maharashtra and Andhra Pradesh
6. Bengal, Orissa and Andhra Pradesh coasts are frequented by cyclones because:
(a) Low pressure conditions in northwest India lead to the creation of depression over Andaman
Sea
(b) The level coastline makes the cyclones penetrate these areas earlier
(c) These areas are close to a volcano
(d) Heavy rainfall in these parts encourage strong wind conditions
7. The peninsular part of India experiences peak summers earlier than northern India because:
(a) Due to northward movement of the sun, the global heat belt shifts northward
(b) There is less rainfall in the peninsula during that time.
(c) Cold waves from Central Asia sweeps through the northern plains during the time.
(d) Clouds do not form in those months
8. The term monsoon is originated from?
(a) Arabic (c) Hindi
(b) German (d) Latin
9. In which month the transition season changes the hot rainy season to dry winter season?
(a) October to November (c) February to March
(b) December to February (d) June to July
10. Which of the following causes rainfall in West Bengal during the hot weather season?
(a) Kal Baishakhi (c) Southwest monsoon
(b) Mango showers (d) Retreating Monsoon
II. Answer the following Questions.
1. Why is the distribution of rainfall uneven in India? Mention any five factors?
The uneven distribution of rainfall in India is influenced by various geographical and climatic
factors. These factors affect the amount and distribution of rainfall across different regions of the
country.
Monsoon Winds: The primary source of rainfall in India is the monsoon winds. The southwest
monsoon winds bring heavy rainfall to the western coast and northeastern regions, while the interior
regions receive less rainfall.
Topography: The presence of mountain ranges like the Western Ghats and the Himalayas influences
rainfall distribution. The Western Ghats block the monsoon winds, causing heavy rainfall on the
windward side and creating a rain shadow effect on the leeward side.
Distance from the Sea: Coastal regions receive more rainfall due to the proximity to the sea, which
provides moisture-laden winds. In contrast, interior regions far from the sea receive less rainfall.
 Cyclonic Activity: Regions affected by cyclonic activity, especially in the eastern coast, receive
heavy rainfall during the monsoon and post-monsoon seasons.
Latitude and Altitude: Regions at higher altitudes and latitudes tend to receive less rainfall
compared to lower altitude regions. The temperature and pressure variations also play a role in the
distribution of rainfall.
2. Differentiate between the North-East Monsoons and South-West Monsoons by explaining five
distinctive features of each.
South-West Monsoon North-East Monsoon

i. These monsoon winds blow northward from (i)These monsoon winds blow from northeast
the Arabian Sea and the Bay of Bengal. towards the sea-side.

ii. These monsoon winds blow from June to (ii)These winds blow from October to
September. November.

iii. These winds cause country-wide rainfall. (iii)These cause rainfall only in Coromandel
coast including Tamil Nadu when these strike at
the wetlands of the Eastern Ghats.

iv. These blow from oceanic high pressure areas (iv)These winds blow from land to sea as a
towards the low pressure areas of land. result of reversal in the direction of wind or
start of retreating monsoon season.

v. These winds blow during advancing monsoon (v)These winds blow during retreating monsoon
season. season.

3. Development of tropical cyclones is a distinguishing feature of the monsoon. How do tropical

cyclones influence distribution of rainfall in India?
These disturbances affect the Eastern coastal regions of India. By causing heavy rainfall in one part
of the country (mostly the Eastern coast), the tropical cyclone influences the distribution of rainfall in
India. Thus, it can be concluded that development of tropical cyclones is a distinguishing
feature of monsoon.
III. Map based Questions.
1. On the outline map of India, locate and label the following cities.
(a) Thiruvananthapuram
(b) Jodhpur
(c) Bengaluru
2. Two features are marked on the outline map of India. Identify the features on the basis of
information provided and mark them.
(a) Area receiving rainfall less than 20 cm
(b) Area receiving rainfall more than 400 cm.

Note: Take a print out of the map attached in the question, mark the places mentioned
in the question (Question No. 1 – three places and Question No. 2 – two
markings) and stick it in the class work note.