RBSE Class 9 Social Science Important Questions Geography Chapter 5 Natural Vegetation and Wildlife

Rajasthan Board RBSE Class 9 Social Science Important Questions Geography Chapter 5 Natural Vegetation and Wildlife  Important Questions and Answers. 

RBSE Class 9 Social Science Important Questions Geography Chapter 5 Natural Vegetation and Wildlife 

Multiple Choice Questions:

Question 1. 
To which one of the following types of vegetation does rubber belong to ?
(a) Tundra 
(b) Himalayan
(c) Tidal 
(d) Tropical Evergreen
Answer:
(d) Tropical Evergreen

Question 2. 
Which of the followiiig is form of natural vegetation ?
(a) Forests 
(b) Grass
(c) Shrubs and bushes 
(d) All the above
Answer:
(d) All the above

 

Question 3. 
Name the non-flowering plant
(a) Fungi 
(b) Lilly 
(c) Cactus 
(d) Tulip
Answer:
(a) Fungi 

Question 4. 
Name the biosphere reserve situated in Madhya Pradesh
(a) Gir forest 
(b) Rajaji 
(c) Pachmarhi 
(d) West Bengal
Answer:
(c) Pachmarhi 

Question 5. 
Given term is used for the original plant cover grown naturally
(a) Garden 
(b) Agriculture
(c) Virgin vegetation 
(d) Indigenous species
Answer:
(c) Virgin vegetation 

Question 6. 
India’s position in the world with regard to plant diversity is 
(a) First 
(b) Tenth 
(c) Twelfth 
(d) Third
Answer:
(b) Tenth 

Question 7. 
How many types of plants species are found in India?
(a) Nearly 3,000 
(b) Nearly 45,000 
(c) Nearly 20,000
(d) Nearly 47,000
Answer:
(d) Nearly 47,000

Question 8. 
Which one of the given trees is found in tropical rainforests
(a) Mahogany 
(b) Teak 
(c) Deodar 
(d) Sal
Answer:
(a) Mahogany 

 

Question 9. 
The total number of flowering plants in India is nearly
(a) 8,000 
(b) 15,000 
(c) 10,000 
(d) 9,000
Answer:
(b) 15,000 

Question 10. 
Which of the following part of India evergreen forests are found ?
(a). Assam 
(b) Rajasthan 
(c) Odisha 
(d) Uttar Pradesh
Answer:
(a). Assam 

Question 11. 
The dry deciduous forests are found in areas of rainfall between
(a) 50-70 cm 
(b) above 400 cm 
(c) 100 cm-70 cm 
(d) 250 cm
Answer:
(c) 100 cm-70 cm 

Question 12. 
Kashmir stag, spotted dear, wild sheep, snow leopard are found in these forests
(a) Mangrove 
(b) Montane 
(c) Evergreen 
(d) Deciduous
Answer:
(b) Montane 

Question 13. 
According to India state of Forest report 2011, the forest cover in India is
(a) 21.05% 
(b) 10% 
(c) 15% 
(d) 8%
Answer:
(a) 21.05% 

Question 14. 
A very large ecosystem on land having distinct type of vegetation and wild life is called
(a) Virgin forest 
(b) Bio-reserve 
(c) Ecology 
(d) Biome
Answer:
(d) Biome

 

Question 15. 
These forests have varieties of the plants whose roots submerged under water
(a) Montane 
(b) Conifers 
(c) Mangrove 
(d) Rainforests
Answer:
(c) Mangrove 

Question 16. 
The number of species of fish found in India is
(a) 2,546 
(b) 4,000 
(c) 5,000 
(d) 3,500
Answer:
(a) 2,546 

Question 17. 
Which of the following is not a medicinal plant
(a) Neem 
(b) Tulsi 
(c) Kachnar 
(d) Peepal
Answer:
(d) Peepal

Fill in the blanks:

Question 1. 
Cinchona trees are found in the areas of rainfall more than. ................
Answer:
100 cm

Question 2. 
Simlipal bio-reserve is located in ................ state.
Answer:
Odisha 

Question 3.  
................ Bio Reserve of India is not included in the World Network of Bio Reserves.
Answer: 
Manas 

Question 4. 
Cactus grows in the................ soil.
Answer:
sandy

Question 5. 
Sundari trees are found in. ................
Answer:
Ganga-Brahmaputra delta

 

Question 6.
Natural habitat of the Indian lion is .................
Answer:
 Gir forest

True or False:

Question 1. 
Tropical forest in India is more commonly known as monsoon forest.
Answer:
True

Question 2. 
Coniferous trees are found at the altitude of 1500m-3000m.
Answer:
True

Question 3. 
Flora is the term used to denote plants of a particular region.
Answer:
False

Question 4. 
India is the only country in the world which has Lions and Tigers.
Answer:
True

Question 5. 
The vegetation, which have come from outside India are termed as endemic or indigenous species.
Answer:
False

Question 6. 
Royal Bengal tiger is found in Sunderban delta.
Answer:
True

Match the column:

Column A	Column B
(1) Species of animals	(a) Stems are succulent to conserve water
(2) Dry Deciduous Forest	(b) 1972
(3) Thorn forest and scrubs	(c) 103
(4) Delta of Ganga and Brahmaputra	(d) Fauna
(5) Wildlife Protection Act	(e) Sundari trees
(6) National park	(f) Peninsular plateau and plains of

Answer:

Column A	Column B
(1) Species of animals	(d) Fauna
(2) Dry Deciduous Forest	(f) Peninsular plateau and plains of
(3) Thorn forest and scrubs	(a) Stems are succulent to conserve water
(4) Delta of Ganga and Brahmaputra	(e) Sundari trees
(5) Wildlife Protection Act	(b) 1972
(6) National park	(c) 103

Very Short Answer Type Questions:

Question 1. 
The Tropical Rain forests appear green all the year round’. Give reasons.
Answer:
The trees of the Tropical Rain forests do not shed all their leaves in one particular season. Therefore, these forest appears green all the year round.

 

Question 2. 
How are the habitats of camels and those of one horned rhinoceros diametrically opposite to each other?
Answer:
Camels inhabit the semi-arid and arid regions of thorny forests. These regions receive less than 70 cm of annual rainfall. Contrary to this, Tropical rain forests which receive more than 200 cm of annual rainfall is the natural habitat of one horned rhinoceros.

Question 3. 
How do the thorny plants conserve the moisture in them?
Answer:
Thorny trees have long roots that penetrate deep into the soil in order to get moisture. Leaves are small, thick or in the form of spines in order to check the loss of moisture during transpiration. Stems of the plants are thick and fleshy in order to conserve the water in them.

Question 4. 
Define Virgin vegetation or Natural vegetation.
Answer:
It refers to a plant community which has grown naturally without human aid and has been left undisturbed by human beings for a long time.

Question 5. 
Name the animals found in Montane Forests.
Answer:
The common animals found in montane forests are Kashmir stag, spotted dear, wild sheep, jack, rabbit, tibetan antelope, yak, snow leopard, squirrels, bear, rare red panda, sheep, goats etc.

Question 6. 
Classify the Tropical Deciduous Forests.
Answer:
On the basis of availability of water tropical deciduous forests can be divided in two parts-moist and dry deciduous forests.

Question 7. 
Complete the following table with correct information about the vegetation zone

Vegetation Zones	Mean annual average temp.	mean temp, in January	Remarks
Tropical	Above 24° C	Above 18° C	?

Answer:
No frost.

Question 8. 
Complete the following table with correct information.

Tropical	Plants Found	Division of Forest	Receiving Rainfall
Deciduous Forest	Bamboo, Sal, Shisham, Sandal Wood, etc.	A?	B?

Answer:
(A) Moist, (B) Dry 200 c.m. - 70 c.m.

Question 9. 
Complete the following table with correct information regarding tropical deciduous forests:

Tropical Deciduous Forest	Annual Rainfall	Where found	Dominant species of trees found
	A-?	Mostly in eastern parts of India	B - ?

Question 10. 
Complete the following table with correct information regarding tropical evergreen forests:
(A) More than-200 cm 
(B) Ebony, mahogany, rosewood, rubber and cinchona

 

Tropical Evergreen Forest	Annual	Where found	Species of trees found
	Rainfall A- ?	Heavy rainfall areas such as western ghats, upper parts of Assam, Tamil Nadu coast and the Islands	B - ?

11.
Complete the following table with correct information regarding Thorn Forests and Scrubs:

Thorn Forests And Scrubs	Annual	Where found	Species of plants found
	Rainfall A- ?	Semi-arid areas of Rajasthan, Gujarat, Haryana, Madhya Pradesh, Uttar Pradesh and Chhattisgarh	B - ?

Answer:
(A) Less than 70 cm 
(B) Acacias, Palms, Euphorbias and Cacti.

Question 12. 
Complete the following table with correct information regarding montane forests:

Montane Forests	Heights at which found	Where found	Names of the three natural vegetation belts found
	A - ?	Southern slopes of the Himalayas and places having high altitude in Southern and north-east India	B - ?

Ans.
(A) Above a height of 10 00 metres 
(B) Wet temperate, Temperate and Alpine

Question 13. 
Which river delta is famous for sundari trees?
Answer:
The Ganga Brahmaputra delta.

Question 14.
 About how many plant species are extinct in India?
Answer:
Twenty

Question 15. 
Where are the wild asses found in India?
Answer:
Rann of Kuchchh

Short Answer Type Questions:

Question 1. 
What are bio-reserves? Why are they created?
Answer:
Bio-reserves are large protected terrestrial and coastal ecosystems. Bio¬reserves contain one or more core areas, which are securely protected sites.
They are created with the purpose of.

 

1. Protection of the ecosystem of an area
2. Conserving vegetation, wildlife and environment and preserving biodiversity.
3. Rebuilding any damage caused to ecosystems and habitats.
4. Improvement of relationship between humans and environment.

Question 2. 
Write steps taken by the government for the protection and conservation of great biological diversity of India?
Answer:
The government has taken the following steps for the protection and conservation of great biological diversity of India :

1. Wildlife Protection Act, was implemented in 1972 in India.
2. Eighteen biosphere reserves have been set up in the country to protect flora and fauna.
3. Financial and technical assistance is provided to many Botanical Gardens by the government since 1992.
4. Project Tiger, Project Rhino, Project Great Indian Bustard and many other eco-development projects have been introduced.
5. 103 National Parks, 535 Wildlife sanctuaries and Zoological gardens are set up to take care of Natural heritage.

Question 3. 
Distinguish between moist and dry deciduous forests?
Ans.

Moist deciduous forests	Dry deciduous forests
(i) These forests spread in areas receiving rainfall between 200 and 70 cm.	(i) These forests found in areas having rainfall between 100 cm and 70 cm.
(ii) They exist mostly in the eastern part of the country - northeastern states, the foothills of the Himalayas, Jharkhand, West Odisha and Chhattisgarh, and on the eastern slopes of the Western Ghats.	(ii) These forests exist in the rainier parts of the peninsular plateau and the plains of Bihar and Uttar Pradesh.
(iii) Some of the commercially important species found here are-teak, bamboos, sal, shisham, sandalwood, khair, kusum, arjun and mulberry.	(iii) Some of the commercially important species found here are teak, sal, peepal and neem.

Question 4. 
Write a short note on the bio diversity in India.
Answer:Our country India is one of the 12 mega bio-diversity countries of the world. India has about 47,000 plant species, and ranks tenth in the world and fourth in Asia in plant diversity. As many as 15,000 flowering plants grow in India, which is 6 percent in the world’s total number of flowering plants. Many non-flowering plants such as ferns, algae and fungi also grow here in abundance.
India is also rich in animal diversity. It has 90,000 species of animals and a rich variety of fish in its fresh and marine waters.

Question 5. 
How are forests helpful to us? Give examples.
Or
Why are forests important to human beings and environment? Explain.
Or
How do forest play a productive role? Explain.
Answer:
Forests are useful to humans in many ways.

1. Forests are renewable resources and enhance the quality of the environment.
2. They modify local climate, control soil erosion and regulate stream flow.
3. Forests support a variety of industries and provide livelihood for many communities.
4. They offer scenic view for recreation.
5. They control wind force and temperature, and cause rainfall.
6. They enrich the soil with humus and provide shelter to the wild life.

Question 6. 
What is the importance of different species of flora and fauna in the ecosystem?
Answer:
From the biodiverse environment, humans selected edible plants as crops, plants with medicinal properties.

1. The animals selected from large reserve of milch animal, also provided us draught power, transportation, meat, eggs.
2. The fish provide nutritive food.
3. Some insects help in pollination of crops and fruit trees, while many other exert biological control on insects that are harmful to us.
4. Thus, every species plays a significant role in the ecosystem, which must be conserved.

 

Question 7. 
Write a note on ‘Migratory Birds’.
Answer:

1. Some of the wetland of India are popular with migratory bird. During winter birds like Siberian crane come in large number.
2. One such place favourable with birds is the Rann of Kachchh.
3. At a place where the desert merges with the sea, flamingo come in thousands to build nest arid raise their young ones.

Long Answer Type Questions:

Question 1.
Describe the major reasons for diversity in flora and fauna.
Answer:
There is diversity in flora and fauna in the world. Many species of flora and fauna are also found in our India country. The flora and wildlife of one region is different from the vegetation and wildlife of another region. It is due to following factors- A. Surface : The type of flora and fauna is dependent on the quality of surface. Two elements in the surface affect their diversity.
(i)Land : Land affects the natural vegetation directly and indirectly. The 
type of vegetation is not same in mountainous, plateau and plain areas. The nature of land influences the type of vegetation. The fertile level is generally devoted to agriculture. The undulating and rough terrains are areas where grassland and woodlands develop and give shelter to a variety of wildlife. Forests are found on mountains.

(ii) Soil: Diversity in vegetation also occurs according to the soil. The sandy soils of the desert support cactus and thorny bushes, while wet, marshy, deltaic soils support mangroves and deltaic vegetation. The hill slopes with some depth of soil have conical trees.

2. Climate : 
The following elements of climate affect vegetation and wildlife-
(i) Temperature : The character and extent of vegetation are mainly determined by temperature along with humidity in the air, precipitation and soil. On the slopes of the Himalayas and the hills of the Peninsula above the height of 915 metres, the fall in the temperature affects the types of vegetation and its growth, and changes it from tropical to subtropical temperate and alpine vegetation. There is also a difference in the wild animals of the cold regions and hot regions.

(ii) Photoperiod (Sunlight) : variation in vegetation also occurs due to _ difference in availability of sunlight. The variation in duration of sunlight
at different places is due to differences in latitude, altitude, season and duration of the day. Due to longer duration of sunlight, trees grow faster in summer. Their growth is affected in lack of sunlight.

(iii) Precipitation : In India, almost the entire rainfall is brought in by the advancing southwest monsoon (June to September) and retreating northeast monsoons. Areas of heavy rainfall have more dense vegetation as compared to areas of less rainfall.
Diversity in flora also affect in the diversity of fauna because both are inter-related.

Question 2. 
Briefly describe the major types of vegetation found in India.
Or
How many types of vegetation are found in Indian climate? Write their names.
Or
Briefly describe any four types of vegetation found in India.
Answer:
Following are the types of vegetation found in India-
A. Tropical Evergreen Forests : 
These forests are common in areas having more than 200 cm of rainfall. These forests are restricted to heavy rainfall areas of the Western Ghats and the island groups of Lakshadweep, Andaman and Nicobar, upper parts of Assam and Tamil Nadu coast. In these forests, trees may reach great heights up to 60metres or even above. Trees such as Ebony, mahogany, rosewood, rubber and cinchona are found in these forests. The common animals found in these forests are elephant, monkey, lemur and deer. One homed rhinoceroses are found in the jungles of Assam and West Bengal. Besides these animals, plenty of birds, bats, sloth, scorpions and snails are also found in these jungles.

B. Tropical Deciduous Forests: 
They are also called the monsoon forests and spread over the region receiving rainfall between 200 cm and 70 cm. These are the most widespread forests of India. Trees of this forest type shed their leaves for about six to eight weeks in dry summer. These forests can be divided into two parts (a) Wet deciduous forest (b) Dry deciduous forest. Sagon is the main tree of these forests. Besides this Bamboos, sal, shisham, sandalwood, khair, kusum, aijun and mulberry are other important trees found in these forests. In these forests, the common animals found are lion, tiger, pig, deer and elephant.

C. The Thorn Forests and Scrubs: 
In regions with less than 70 cm of rainfall, the natural vegetation consists of thorny trees and bushes. This type of vegetation is found in the north-western part of the country, including semi- arid areas of Gujarat, Rajasthan, Madhya Pradesh, Chhattisgarh, Uttar Pradesh and Haryana. Acacias, palms, euphorbias and cacti are the main plant species. In these forests, the common animals are rats, mice, rabbits, fox, wolf, tiger, lion, wild ass, horses and camels.

D. Montane Forests :
Montane forests are found in mountainous areas. In mountainous areas, the decrease in temperature with increasing altitude leads to the corresponding change in natural vegetation.

(i) The wet temperate type of forests are found between a height of 1000 and 2000 metres. Evergreen broad-leaf trees, such as oaks and chestnuts ‘predominate.

 

(ii) Between 1500 and3000 metres, temperate forests containing coniferous trees, like pine, deodar, silver fir, spruce and cedar, are found. These forests cover mostly the southern slopes of the Himalayas, places having high altitude in southern and north-east India.

(iii) At higher elevations, temperate grasslands are found.

(iv) At high altitudes, generally, more than 3,600 metres above the sea level, temperate forests and grasslands give way to the Alpine vegetation. Silver fir, junipers, pines and birches are the common trees of these forests. However, they get progressively stunted as they approach the snow¬line. Ultimately, through shrubs and scrubs, they merge into the Alpine grasslands. At higher altitudes, mosses and lichens form part of tundra vegetation. The common animals found in montane forests are Kashmir stag, spotted dear, wild sheep, jackrabbit, Tibetan antelope, yak, snow leopard, squirrels, Shaggy horn wild ibex, bear and rare red panda, sheep and ; goats with thick hair.

E. Mangrove Forests : 
Dense mangroves are the common varieties with roots of the plants submerged under water. The deltas of the Ganga, the Mahanadi, the Krishna, the Godavari and the Kaveri are covered by such vegetation. ' In the Ganga-Brahmaputra delta, sundari trees are found, which provide durable hard timber. Palm, coconut, keora, agar, etc., also grow in some parts of the delta. Royal Bengal Tiger is the famous animal in these forests. Turtles, crocodiles, gharials and snakes are also found in these forests.

Question 3.
Describe the salient features of the wildlife of India.
Answer:
The salient features of the wildlife of India are as follows
(i) India is also rich in its fauna. It has approximately 90,000 animal species.

(ii) The country has about 2,000 species of birds. They constitute 13% of the world’s total.

(iii) There are 2,546 species of fish, which account for nearly 12% of the world’s stock.

(iv) It also shares between 5 and 8 per cent of the world’s amphibians, reptiles . and mammals.

(v) Elephants, one-homed rhinoceroses, wild ass, camels, indian bison, nilgai, chousingha ,gazel and different species of deer are some other animals found in India.

(vi) India is the only country in the world that has both tigers and lions. Leopards are also found here.

(vii) Ladakh’s freezing high altitudes are a home to yak, the shaggy horned wild ox weighing around one tone.

(viii)The Tibetan antelope, the bharal (blue sheep), wild sheep, and the kiangCTibetan wild ass) are also found here. Rare red panda are found in certain pockets.

(ix) In the rivers, lakes and coastal areas, turtles, crocodiles and gharials are found. The latter is the only representative of a variety of crocodile, found in the world today.

(x) Various colorful birds are found in India. Peacocks, pheasants, ducks,
parakeets, cranes and pigeons are some of the birds inhabiting the forests and wetlands of the country.