Ratna Sagar Geography Solutions Solutions for Class 6 Social science Chapter 1 The Earth And The Solar System are provided here with simple step-by-step explanations. These solutions for The Earth And The Solar System are extremely popular among Class 6 students for Social science The Earth And The Solar System Solutions come handy for quickly completing your homework and preparing for exams. All questions and answers from the Ratna Sagar Geography Solutions Book of Class 6 Social science Chapter 1 are provided here for you for free. You will also love the ad-free experience on Meritnation’s Ratna Sagar Geography Solutions Solutions. All Ratna Sagar Geography Solutions Solutions for class Class 6 Social science are prepared by experts and are 100% accurate.

Page No 106:

Question A.1:

Which of the following trees is not found in the tropical rainforests?

a. Rosewood
b. Ebony
c. Teak
d. Mahogany

Answer:

The correct answer is option (c).

Explanation: Tropical rainforests are found in areas of heavy rainfall. The trees found in these forests are rosewood, ebony and mahogany. Teak, on the other hand, is a tree found in tropical deciduous forests.

Page No 106:

Question A.2:

Which of the following trees is found in the tropical deciduous forest?

a. Sal
b. Sundari
c. Acacia
d. Ebony

Answer:

The correct answer is option (a).

Explanation: Teak and sal are important trees found in tropical deciduous forests. The trees found in these areas shed their leaves for six to eight weeks.

Page No 106:

Question A.3:

Which of the following trees grows widely in the coniferous forests?

a. Shisham
b. Spruce
c. Mahogany
d. Acacia

Answer:

The correct answer is option (b).

Explanation: Coniferous forests are found in areas that experience long winters and receive high annual rainfall. The trees in these forests are conical in shape; some of their varieties are pine, spruce, mahogany, fir and larch.



Page No 107:

Question A.4:

Mangrove forests can thrive in ____________ water.

a. salt
b. fresh
c. polluted
d. salt and fresh

Answer:

The correct answer is option (d).

Explanation: Mangrove forests are found along coastlines, salt marshes and backwaters. Trees in these forests can survive in both saltwater and freshwater.

Page No 107:

Question A.5:

How many tiger reserves are there in India?

a. 21
b. 23
c. 25
d. 27

Answer:

The correct answer is option (d).

Explanation: Tiger reserves are established to conserve tigers. At present, there are 27 tiger reserves in India.

Page No 107:

Question A.6:

Which of the following is not a national park?

a. Namdapha
b. Gir
c. Periyar
d. Bharatpur

Answer:

The correct answer is option (d).

Explanation: Bharatpur is not a national park; it is a bird sanctuary.

Page No 107:

Question A.7:

Which of the following is a bird sanctuary?

a. Dudhwa
b. Sultanpur
c. Dachigam
d. Guindy

Answer:

The correct answer is option (b).

Explanation: Sultanpur is a bird sanctuary located in the state of Haryana. A large number of migratory birds visit the sanctuary every year.

Page No 107:

Question A.8:

Kanha National park is located in

a. Uttar Pradesh
b. Andhra Pradesh
c. Madhya Pradesh
d. Himachal Pradesh

Answer:

The correct answer is option (c).

Explanation: Kanha National Park is located in the Balaghat district of Madhya Pradesh. It is now declared as a tiger reserve.

Page No 107:

Question B:

1. Tropical deciduous forests are also called the _________ forests.
2. Pine and silver fir are found in _____________ forests.
3. The wood the Sundari tree is widely used to make ___________.
4. Wildlife Week is observed in India in the month of _________.

Answer:

1. Tropical deciduous forests are also called the monsoon forests.

Explanation: Tropical deciduous forests are also known as monsoon forests because these are located in the rainier interiors of the Himalayan foothills, plains and the eastern slope of the Western Ghats. Trees in these forests shed leaves for a particular period of time during the year.

2. Pine and silver fir are found in coniferous forests.
 
Explanation: Pine, spruce and fir are the varieties of trees found in coniferous forests. These forests are located at greater heights and places where the annual rainfall is high.

3. The wood the Sundari tree is widely used to make boats.

Explanation: Sundari trees are found in the Sunderbans; the wood of these trees is hard, oily and durable. It is used for making boats and other construction instruments.

4. Wildlife Week is observed in India in the month of October.

Explanation: Conservation of the wildlife is the need of the hour. For the same purpose, Wildlife Week is celebrated in India during the first week of October to create awareness among the people.

Page No 107:

Question C:

1. Forests grow in areas of scanty rainfall. ___________
2. Thick barks and long thorns help the desert plants to reduce water loss. __________
3. The one-horned rhinoceros is protected in Manas National Park. ___________
4. Keibul Lamjo National Park is in Arunachal Pradesh. ___________

Answer:

1. The statement is false.

Explanation: Forests are mainly found in areas of abundant rainfall because scanty rainfall does not support much vegetation.

2. The statement is true.

Explanation: Desert areas are characterised by low rainfall and extreme temperatures. Hence, to reduce the loss of water through evaporation, vegetation is modified accordingly. Thick bark and long thorns prevent the loss of water.

3. The statement is false.

Explanation: Kaziranga National Park in Assam was established to protect one-horned rhinoceroses. Manas, on the other hand, is a tiger reserve.

4. The statement is false.

Explanation: Keibul Lamjo National Park is located in Manipur. It is the only floating national park found in the Loktak Lake.

Page No 107:

Question D:

Name the states in which the following national parks/ wildlife sanctuaries are located.

1. Chilika
2. Hemis
3. Kaziranga
4. Koyna
5. Guindy
6. Corbett
7. Gir
8. Ushakothi
9. Dudhwa
10. Palamau
11. Kedarnath
12. Narayan Sarovar

Answer:

The names of the states in which the following national parks/wildlife sanctuaries are located are as follows:

1. Chilka Lake: Odisha
2. Hemis National Park: Jammu and Kashmir
3. Kaziranga National Park: Assam
4. Koyna Wildlife Sanctuary: Maharashtra
5. Guindy National Park: Tamil Nadu
6. Corbett National Park: Uttarakhand
7. Gir National Park: Gujarat
8. Ushakothi Wildlife Sanctuary: Odisha
9. Dudhwa National Park: Uttar Pradesh
10. Palamau Tiger Reserve: Jharkhand
11. Kedarnath Wildlife Sanctuary: Uttarakhand
12. Narayan Sarovar Sanctuary: Gujarat

Page No 107:

Question E:

  Column A   Column B
1. Rajaji a. Gir forests
2. Lions b. Deciduous
3. Tropical rainforests c. Tidal creeks
4. Monsoon forests d. National park
5. Mangroves e. Evergreen

Answer:

A B
Rajaji National park
Lions Gir Forest
Tropical rainforests Evergreen
Monsoon forests Deciduous
Mangroves Tidal creeks

Explanation:

1. Rajaji---------> National park

Rajaji National Park is located on the foothills of the Himalayas. It covers almost three districts of the state of Uttarakhand, i.e. Haridwar, Pauri and Dehradun. A large number of species of mammals are found in this reserve, including elephants.

2. Lions-------> Gir Forest

The Gir Forest in Gujarat is a natural habitat of Asiatic lions. They are endangered species and therefore need to be saved.

3. Tropical rainforests -------> Tidal creeks

Tropical rainforests are found in areas with heavy rainfall. They are called evergreen forests because their trees do not shed leaves in a particular period during the year. Thus, they remain green throughout the year.


4.  Monsoon forests --------> National park

Tropical deciduous forests are also known as monsoon forests because the trees in these forests shed their leaves for a period of few weeks, though the time in which they shed their leaves may differ.


5. Mangroves------> Evergreen

Mangrove forests are found along coastlines, tidal creeks and backwaters. The trees in these forests can survive in both freshwater and saltwater.

Page No 107:

Question F:

1. Tropical rainforests
2. Tropical deciduous forests
3. Desert vegetation
4. Mangrove forests
5. Wildlife in India

Answer:

1. Tropical rainforests: These forests are found in areas of heavy rainfall. They are called evergreen forests because their trees do not shed leaves in a particular period during the year. Thus, they remain green throughout the year. Ebony, mahogany and rosewood are the tree varieties found in these forests. In India, they are found in the Western Ghats and parts of Odisha and Andaman and Nicobar Islands.

2. Tropical deciduous forests: These forests are also known as monsoon forests because the trees of these forests shed their leaves for a period of few weeks, though the time in which these trees shed their leaves is not the same. Teak and sal are important tree varieties of these forests. In India, they are found in the foothills of the Himalayas and parts of Bihar, Jharkhand and Chhattisgarh.

3. Desert vegetation: Desert areas are characterised by low rainfall and extreme temperatures. Hence, to reduce the loss of water through evaporation, vegetation here is modified accordingly. Thick bark and long thorns prevent the loss of water. Shrubs and bushes are found here. In India, they are found in the western parts of Rajasthan.

4. Mangrove forests: Mangrove forests are found along salt marshes, coastlines and backwaters. The trees in these forests can survive in both saltwater and freshwater. In India, the delta region of Ganga and Brahmaputra has these forests. The Sunderbans comprise a tree variety called Sundari; the wood of this tree is very hard and durable.

5. Wildlife in India: India has a wide variety of flora and fauna. It has more than 5,000 species of trees, 80,000 species of animals and 1,200 species of birds. But due to the ever-increasing population, these numbers are going down, so there is a need to conserve these species. For this purpose, national parks and wildlife sanctuaries have been established in large parts of the country.



Page No 108:

Question G:

1. Name the major types of forests found in India.
2. Why are the tropical rainforests called evergreen forests?
3. What are the products obtained from the forests?
4. What is the significance of national park in India?

Answer:

1. The major types of forests found in India are as follows:

  • Tropical rainforests
  • Tropical deciduous forests
  • Desert forests
  • Alpine forests
  • Coniferous forests
  • Mangrove forests
2. Tropical rainforests are found in areas of heavy rainfall. They are called evergreen forests because their trees shed their leaves gradually during the year. Thus, they remain green throughout the year. Ebony, mahogany and rosewood are the tree varieties found in these forests.

3. Products that are obtained from forests are as follows:
  • Wood
  • Rubber
  • Lac
  • Resin
  • Gum
  • Cellulose
  • Tendu leaves
  • Medicinal herbs
4. National parks are important not only for the conservation of the wildlife but also for the preservation of natural vegetation. They help in keeping the beauty of the forests intact while maintaining the ecological balance.

Page No 108:

Question H.1:

Why does India have a large variety of forests?

Answer:

The distribution of forests depends on the location of a place. India is ideally located in the tropical zone; this factor is responsible for optimum rainfall and temperature for the growth of forests. This is the reason for a large variety of forests found here. The variation in tree varieties comes with the uneven distribution of rainfall in the country. The major types of forests found in India are:

  • Tropical rainforests
  • Tropical deciduous forests
  • Desert forests
  • Alpine forests
  • Coniferous forests
  • Mangrove forests

Page No 108:

Question H.2:

How are forests in the Himalayas classified?

Answer:

Forests in the Himalayan region are distributed according to their varying altitudes. The classification can be understood as under:

  1. The Lower Himalayas, i.e the Shiwaliks, are covered with tropical deciduous forests, with teak and sal as the prime varieties of trees.
  2. With height, the variety of forests changes to coniferous forests. Pine, spruce and fig are important trees found in these forests.
  3. At heights of more than 3500 metres, alpine vegetation is found.
Beyond this height, peaks are covered with snow almost throughout the year.

Page No 108:

Question H.3:

What is the importance of forests?

Answer:

Forests are mainly found in regions experiencing abundant rainfall. The importance of forests can be understood with the help of the following points:

  • They provide us with several useful products (like wood and rubber) useful in our daily lives.
  • They play an important role in developing the economy of a country.
  • They help in maintaining the ecological balance of nature.
  • They are home to a large variety of flora and fauna.
  • They prevent the soil from getting eroded, thus enhancing its fertility.
  • They regulate air currents and prevent the occurrence of floods.

Page No 108:

Question H.4:

Distinguish between a national park and wildlife sanctuary.

Answer:

 

National Park Wildlife Sanctuary
A national park is meant for the preservation of both flora and fauna. A wildlife sanctuary is meant for the preservation of particular endangered species of wildlife.
Example: Corbett National Park Example: Hazaribagh Wildlife Sanctuary

Page No 108:

Question H.5:

Why do you think forests are conserved in areas not fit for cultivation?

Answer:

Cultivation requires clearing of forests on a large scale. In areas that are not fit for cultivation, clearing of forests for cultivation purpose involves a huge cost and labour. This, in turn, increases the cost of production. So, forests are conserved in areas that are not fit for cultivation, e.g. the Western Ghats.

Page No 108:

Question H.6:

Why most of the tropical rainforests cannot be exploited for commercial uses?

Answer:

Tropical rainforests cannot be exploited for commercial uses because of the following reasons:

  1. The tree varieties found here are abundant and scattered and are not found in clusters; this increases the cost of production.
  2. These forests are very dense, so they are not easily accessible.
  3. The cultivation of a single species can endanger the fragile ecosystem of the area and lead to catastrophic results.

Page No 108:

Question H.7:

Do you think public awareness is a must for conserving wildlife?

Answer:

The sole efforts of the government cannot ensure the safety and conservation of wildlife. Public awareness and public sensitivity towards the problem are equally important for conserving wildlife. If people are aware of the benefits of conserving wildlife and means to achieve it, then the government plans and policies can effectively be implemented to meet the purpose.



View NCERT Solutions for all chapters of Class 6