scsvshsstclass4c(09.5)

Saturday, May 9, 2020

THE NORTHERN MOUNTAINS AND THE NORTHERN PLAINS (PART 8 contd.)

Good Morning students!
The question answers done in the previous class made you revise some part of the chapter.
Today, we will cover the remaining part of the chapter.

Let's continue with our written work.

Today we will do QB and QD in our notebook.

B. Choose the correct answer and fill in the blanks.

1. The Himalayas extend   2400 km   (3500 km/2400 km) from east to west in India.

2. A slow moving river of ice is called    glacier    .(glacier/tributary)

3. The Kullu valley and Lahul Spiti Valley lie in the   Himachal range. (Himachal/shiwalik)

4.   Royal Bengal Tigers  (Eels/Royal Bengal Tigers) reside in the Sunderbans and     Great Indian Rhinoceros   (Royal Bengal Tigers/Great Indian Rhinoceros) in the marshes of Assam.

5. The rivers  Brahmaputra   (Kosi /Brahmaputra) and  Satluj  (Ganga/Satluj) originate in Tibet.

D. Answer the following in detail.

Q1. Where is terrace farming practised in the Himalayas and why?

Ans. Terrace farming is practised in the Middle Himalayas or The Himachal. It is a very old agricultural practice used to grow crops on the steep sides of mountains. This process grows crops requiring large amount of water. The steps or terraces collect and distribute water while reducing soil erosion.

Q2. Differentiate between the Greater Himalayas and the Middle Himalayas.

Ans. The Greater Himalayas            The Middle Himalayas 

(i) They are the highest                (i) They are situated to the

   mountain range of the                    south of the greater 

   Himalayas.                                      Himalayas.

(ii) They are also known               (ii) They are also known as 

     as The Himadri.                            The Himachal.

(iii) They have an average            (iii) They have an average 

      height of 6000 m.                           height of 4500 m.

(iv) Heighest mountain peaks       (iv) Popular valleys like the

     like Kanchenjunga, Nanga            valleys of kullu, Kangra

     Parbat and Nanda Devi                 and Kashmir and hill

     are situated here.                           stations like Shimla and

                                                         Nainital are located here.

     

Q3. What is the terai? What are the crops grown in this region?

Ans. Terai is a dense marshy land. Crops like rice, wheat and sugar cane  are grown in this region.

Q4. State five reasons why Himalayas are important for us.

Ans. The Himalayas are important for us because:

• They form a natural boundary between India and neighbours like China.
• They protect our country from the cold winds of the north.
• They prevent the rain-bearing winds from leaving the country.
• Almost all the rivers of India have their source in the Himalayas.
• The Himalayan slopes have dense forests. These forests are a storehouse of Timber and medicinal herbs.

Q5. What is a delta? Describe the Ganga-Brahmaputra delta.

Ans. A delta is an area of flat land shaped like a triangle where a river divides into smaller rivers as it goes into the sea.

The Ganga-Brahmaputra delta, also known as the Sunderban delta, is situated in West Bengal state in India and Bangladesh where the rivers Ganga and Brahmaputra fall into the Bay of Bengal. It is the world's largest delta and the most fertile regions in the world.

Q6. Why are the Northern Plains one of the most well-populated regions of India?

Ans. The Northern Plains are densely populated because of the following reasons:

(i) They have better climatic conditions which is suitable for human livelihood.

(ii) The land is fertile here which supports agriculture.

(iii) A good network of roads and railways has also been built here. 

So, now we have completed the lesson. Complete the work neatly.

That's all for today. God Bless!!