Chapter 5 - "The Great Indian Desert"

21.7.2015 Chapter 5 - “The Great Indian Desert”

Q1. Why are days hot and nights cool in desert?

Ans1. The climate in the desert is extreme. This is because the sand heats up quickly in the day, and cools down fast at night.

Q2. What has been the effect of Indira Gandhi Canal on the Thar desert?

Ans2. The Indira Gandhi canal that starts from the Satluj river, provides water to parts of Thar desert. These areas have now become green and the farmers can grow a variety of crops. 

 

Q3. Why is camel still a very important means of transport in the desert?

Ans3.a) The camel is the most useful animal in the desert.

b) It can withstand the desert heat, walk easily on sand.

c)It can live without food and water for several days.

d)It is used to carry loads, pull carts and plough fields.

e)Its milk and meat serve as food for people.

Because of the above reasons Camel is called the SHIP OF THE DESERT even though many roads are built and many vehicles run on them.

Q4. Name a few tourist attractions of Rajasthan.

Ans4. Tourism is an important industry in the region. Jaisalmer, Jodhpur and Bikaner are important cities in the region. Desert festival of Jaisalmer is famous all over the world. Old forts and historical monuments in Rajasthan are a great attraction for tourists.

Words To Remember:-

a) Sand Dunes:- Small hills of sand in a desert.

b) Oasis:- An area in desert with water and greenery.

chapter 3 - "The northern mountains"

14.7.2015 Chapter 3 - “ The Northern Mountains”

Q1. From where do himalayas get their name?

Ans1. The word 'HIMALAYAS' in sanskrit means 'abode of snow'. A large part of Himalayan range is covered with snow throughout the year.

Q2. Name the ranges that make up the Himalayas. Which is the highest and which is the lowest?

Ans2. The Himalayas has 3 mountain ranges that run parallel to each other. Those are:-

a) The Himadri or the greater himalayas ( highest range ).

b) The Himachal or the middle himalayas.
c)The Shiwalik or the outer himalayas ( lowest range ).

Q3. What are seven sisters? Name them.

Ans3. Towards the east, the Himalayan ranges run across the seven states of Arunachal Pradesh, Assam, Meghalaya, Nagaland, MAnipur, Tripura and Mizoram. They are called seven sisters.

Q4. How do the Himalayas affect the climate if the northern plains of India?

Ans4. The Himalayas stop the monsoon winds from going further north, and thus bring heavy rainfall to Northern plains to India.

Q5. State the importance of Himalayas.

Ans5. The Himalayas are very important for our country. They help us in many ways.

a) It acts like a wall and protect us from trans border enemies.

b)It also protects us from cold winds blowing from Central Asia.

c)It stops the monsoon winds which bring heavy rainfall in Northern Plains.

d)The forests on its slopes provide us with wood, medicines etc. and is home to several wild animals.

e)Many rivers originate in Himalayas.

WORDS TO REMEMBER:-
a) Deforestation:-  The cutting down of trees on a large scale.
b) Houseboat:- A house on a boat, found in Kashmir region mostly used for boating for pleasure.