Important Question Answers for the Class 9-Social Science Chapter 3- The Dynamic Atmosphere and Changing Climate ***************************** Very Short Answer Type Questions: 1. Which layer of the atmosphere contains the ozone layer? Answer: The stratosphere contains the ozone layer. 2. Name the gas that makes up the highest percentage of the atmosphere. Answer: Nitrogen makes up the highest percentage of the atmosphere. 3. Which element of weather is measured using a barometer? Answer: A barometer is used to measure atmospheric pressure . 4. What is the normal duration of the southwest monsoon in India? Answer: The southwest monsoon usually lasts from June to September . 5. Which season in India is known as the “hot weather season”? Answer: The summer season is known as the hot weather season. 6. Name the process by which water vapour turns into clouds. Answer: The process is called condensation . 7....
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Chapter 3-Landforms and Life
NCERT Question, Activities and Projects
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Q1. In what type of landform is your town/village/city located? Which features mentioned in this chapter do you see around you?
Answer:-
1. I am living in a town where the landform is quite plain.
2. Alluvial soil is found on the very large scale.
3. We can do agriculture work on this land as the soil is very fertile.
4. We can grow many crops on a very large scale.
5. Rice and Wheat are important crops grown in plains.
Q2. Let us go back to our initial trip from Chhota Nagpur to Prayagraj and Almora. Describe the three landforms you came across on the way.
Answer:-
1. The Chhota Nagpur Plateau is a plateau in eastern India which covers much of Jharkhand state, adjacent parts of Chhattisgarh, Odisha, West Bengal and Bihar.
2. Prayagraj is one of most ancient and sacred town of India based on the river Ganga plains. It is known for confluence of three rivers.
3. Almora lies is in the beautiful Kumaon mountain range.
Q3. List few pilgrimage spots in India along with the landforms in which they are found.
Answer:- There many eminent pilgrimage in India: Rishikesh, Haridwar, Mathura, Dwarka, Varanasi, Tirupati, Amritsar, Amarnath, Rameshwaram, Shirdi, Puri and many more.
1. Haridwar:- It is covered by Mountains, hills, rivers. Holy river Ganga flowing there.
2. Amarnath:- It have a mountainous landform. It is located in the Himalayas. Amaranth is famous for Amaranth Cave Temple, dedicated to Lord Shiva.
3. Tirupati:- It is located inthe hills. Tirupati is home to famous Venkateswara Temple, situated in the Tirumala Hills.
Q4. State whether True or False-
(i) The himalayas are young mountains with rounded tops.
(ii) Play tootles usually rise saply , at least on one side.
(iii) Mountains and hills belong to the same type landform.
(iv) Mountains, Plateaus and rivers in India have the same types of flora and fauna.
(v) Ganga is a tributary to the Yamuna.
(vi) Desserts have unique flora and fauna.
(vii) Melting snow feeds rivers.
(viii) Sediments from rivers deposited in the plains makes the land fertile.
(ix) All deserts are hot.
Answer:-
(i) False (ii) False (iii) True
(iv)False (v) False. (vi) True
(vii) True (viii) True. (ix) False
Match the following:-
1. Mount Everest (a) Africa
2. rafting (b) roof of the world
3. camels (c) rice fields
4. plateau (d) desert
5. Gangetic plains (e) river
6. waterway (f) Ganga
7. Mount Kilimanjaro (g) tributary
8. Yamuna (h) climbing
Answer:
1-b, 2-e, 3- d, 4-a
5-c, 6-f, 7-h, 8-g
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