RBSE Solutions for Class 7 Social Science Geography Chapter 6 Natural Vegetation and Wild Life

Rajasthan Board RBSE Solutions for Class 7 Social Science Geography Chapter 6 Natural Vegetation and Wild Life Textbook Exercise Questions and Answers.

RBSE Class 7 Social Science Solutions Geography Chapter 6 Natural Vegetation and Wild Life

RBSE Class 7 Social Science Natural Vegetation and Wild Life InText Questions and Answers

 Page 39 

Question 1.
Can you tell why Salima saw changes in the natural vegetation as she climbed higher and higher? What types of vegetations did she see in the Himalayas starting with the foothills and going to the higher altitudes?
Answer: 
While climbing higher and higher, Salima saw changes in natural vegetation because of change in climate, thickness of soil and slope. She saw snow covered coniferous forests, short grass and trees such as pine, chir, cedar, etc.

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Question 2. 
Where in India do tropical evergreen and tropical deciduous forest occur in India? Name the states?
Answer: 
Tropical Evergreen Forest:
Nagaland, Tripura, Meghalaya, Tamil N adu, Karnataka, West Bengal and Assam.
Tropical Deciduous Forest: 
Jharkhand, Odisha, Chattisgarh and Kerala.

 

Question 3. 
Which type of forest dominates most part of India?
Answer: 
Tropical Deciduous/Monsoon forest.
 
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Question 4.
Look around in your surroundings and find out. the articles made of hard wood and soft wood.
Answer: 
Hard wood: Beds, cupboards, doors, windows, tables, chairs, bridges, etc.
Soft wood: Boats, packing material, paper, etc.

Question 5.
Find out and learn the names of few trees found in your locality.
Answer: 
To be done by students according to their surroundings.
Hint: 
Peepal, Neem, Mango, Guava, Jamum trees are commonly found.

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Question 6.
Can you name the great desert of India? Name some of the common animals of the desert which you have learnt earlier. .
Answer: 
Thar desert is the great-desert of India. Camel, rattle snake, foxes, lions etc.

Question 7. 
What was Salima’s observation after seeing the photographs of thick forest?
Answer: 
Salima’s father showed her. photographs of thick forest. On the questions of why the forests are being cleared, he explained that local people wanted land for settlement and agriculture. Salima wondered if all the forests were cleared, from where we will get oxygen, timber, fruits, nuts etc. She seemed to be worried about the survival of the wild life.

RBSE Class 7 Social Science Natural Vegetation and Wild Life Textbook Questions and Answers   

Question 1. 
Answer the following questions:
(i) Which are two factors on which the growth of vegetation mostly depends?
Answer: 
Growth of vegetation is affected by the following factors:
(a) Temperature, 
(b) Moisture.  

(ii) Which are the three hroad categories of natural vegetation?
Answer: 
Three broad categories of natural vegetation are as follows:
(a) Forests: Grow in areas which receive plenty of rainfall and have high temperature.
(b) Grasslands: Grow in areas of moderate rainfall.
(c) Shrubs: Grow in areas of scanty rainfall.

(iii) Name the two hardwood trees commonly found in tropical evergreen forest.
Answer: 
Rosewood and mahogany are two commonly hardwood trees to tropical evergreen forest.

(iv) In which part of the world are tropical deciduous forests found?
Answer: 
Tropical Deciduous forests are found in India, Northern Australia and Central America.

(v) In which climatic conditions are citrus fruits cultivated?
Answer: 
Citrus fruits are cultivated in the regions marked for hot dry summer and mild rainy winters.

(vi) Mention the uses of coniferous forests.
Answer:
Coniferous forests are the world’s main source of softwood timber and wood pulp. Coniferous trees are used in building construction, furniture, pencils, papers, plywood, matchboxes, packing boxes, etc. Resin is used for making varnish inks etc.
(vii) 
In which part of the world are seasonal grasslands found?
Answer: 
Seasonal grasslands are found in the mid latitudinal zones and in the interior parts of the continent, e.g., Savannah region of Africa. It gets dried up in the dry season. 

Question 2. 
Tick the correct answer:
(i) Mosses and Lichens are found in:
(a) Desertic vegetation
(b) Tropical evergreen forest 
(c) Tundra vegetation
Answer:
(c) Tundra vegetation

(ii) Thorny bushes are found in:
(a) Hot and humid tropical climate
(b) Tundra vegetation
(c) Cold polar climate
Answer:
(b) Tundra vegetation

(iii) In tropical evergreen forest, one of the common animals is:
(a) Monkey 
(b) Giraffe
(c) Camel
Answer:
(a) Monkey 

(iv) One important variety of coniferous forest is:
(a) Rosewood
(b) Pine 
(c) Teak
Answer:
(c) Teak  

(v) Steppe grassland is found in:
(a) South Africa 
(b) Australia 
(c) Central Asia
Answer:
(b) Australia 

Question 3.
Match the following:

Column A	Column B
(i) Walrus	(a)Soft wood tree
(ii) Cedar	(b) An animal of tropical deci duous forest
(iii) Olives	(c)A polar animal
(iv) Elephants	(d) Temperate grassland in Australia
(v) Campos	(e)Thorny shrubs
(vi) Downs	(f) A citrus fruit
	(g) Tropical grassland of Brazil

Answer:

Column A	Column B
(i) Walrus	(c) A polar animal
(ii) Cedar	(a) Soft wood tree
(iii) Olives	(f) A citrus fruit
(iv) Elephants	(b) An animal of tropical deci duous forest
(v) Campos	(g) Tropical grassland of Brazil
(vi) Downs	(d) Temperate grassland in Australia

 

Question 4.
Give Reasons:
(i) The animals in polar region have thick fur and thick skin.
Answer: 
Polar regions are always ice bound so to protect themselves and to maintain the internal heat of the body, the animals living in these extremes climatic conditions have thick skin like walrus and seal and thick fur like polar bear and snow fox.

(ii) Tropical deciduous trees shed their leaves in dry season.  
Answer: 
Tropical deciduous forests are also known as monsoon forests. When it rains, these forests become green with new leaves. When the extreme hot and dry season prevails, in order to save water for the survival, these trees shed their leaves to reduce transpiration.

(iii) The type and thickness of vegetation changes from place to place.
Answer: 
The type and thickness of vegetation changes due to change in following factors:
(i) Climate: Temperature and rainfall.
(ii) Relief: Plains and mountains.
(iii) Soil: Fertile and unfertile.

Question 5. 
Activity: 
(i) Collect pictures and photographs of forests and grasslands of different parts of world. Write one sentence below each picture.
(ii) Make a collage of rainforest, grassland and coniferous forests.
Answer: 
Do yourself.