CBSE Class 9 Social Science Natural Vegetation and Wildlife Worksheet Set 01

Download Class 9 Social Science Worksheets for Contemporary India Chapter 05 Natural Vegetation and Wildlife

Access printable practice worksheets for Contemporary India Chapter 05 Natural Vegetation and Wildlife designed to align with the 2026-27 academic syllabus for Class 9 Social Science. These structured exercises help students evaluate their conceptual understanding and improve exam readiness.

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DEPARTMENT OF SOCIAL SCIENCE

GEOGRAPHY: IX

CH-05: NATURAL VEGETATION AND WILD LIFE

CBSE Class 9 Social Science Natural Vegetation and Wildlife Worksheet Set A
 
Question 
 
1. What number of plant species does India have? State it’s ranking in Asia and in the world?
 
Ans With about 47,000 plant species Indiaoccupies tenth place in the world and fourthin Asia in plant diversity.
 
2.What number of flowering plants does India have? How much it accounts to the world’s total?
 
Ans There are about15,000 flowering plants in India whichaccount for 6 per cent in the world’s totalnumber of flowering plants.
 
3.What number of animal species does India have?
 
AnsIndia has 89,000 speciesof animals
 
4. Define the following:
 
a)Natural Vegetation: Natural vegetation refers to a plantcommunity which has grown naturally withouthuman aid and has been left undisturbed byhumans for a long time.
 
b)Virgin Vegetation: vegetation which has been left undisturbed by humans for a long time. This is termed as avirgin vegetation.
 
c)Endemic or indigenous species: The virgin vegetation, whichare purely Indian are known as endemic orindigenous species .
 
d)Exotic plants: Those plants which have comefrom outside India are termed as exotic plants.
 
5.Differentiate between Flora and Fauna. (Meaning and No. of species)
 
Ans
 
1)The term flora is used to denote plants ofa particular region or period.
 
2)There are 47000species of plants.
 
1)Similarly, the species of animals are referred to as fauna.
 
2)There are 89000 species of animals in India.
 
6. How does land and soil (relief factor) affect natural vegetation?
 
Ans Land:
 
1)Thenature of land influences the type ofvegetation.
 
2) The fertile level is generally devotedto agriculture.
 
3) The undulating and roughterrains are areas where grassland and woodlands develop and give shelter to avariety of wild life.
 
Soil :
 
1) The sandy soils of the desertsupport cactus and thorny bushes.
 
2) Wet,marshy, deltaic soils support mangroves anddeltaic vegetation. 3)The hill slopes with somedepth of soil have conical trees.
 
7. How do temperature, sunlight and precipitation (climate factor) affect natural vegetation?
 
Ans )Temperature
 
●The character and extent of vegetation aremainly determined by temperature along withhumidity in the air, precipitation and soil.
 
● Onthe slopes of the Himalayas and the hills of thePeninsula above the height of 915 metres, thefall in the temperature affects the types ofvegetation and its growth, and changes it fromtropical to subtropical temperate and alpinevegetation.
 
Photoperiod (Sunlight )
 
●The variation in duration of sunlight at differentplaces is due to differences in latitude, altitude,season and duration of the day.
 
● Due to longerduration of sunlight, trees grow faster in sunlight.
 
Precipitation
 
●In India almost the entire rainfall is brought inby the advancing southwest monsoon (June toSeptember) and retreating northeast monsoons.
 
●Areas of heavy rainfall have more dense vegetationas compared to other areas of less rainfall.
 
8.Why are the southern slopes in the Himalayan region covered with thick vegetation?
 
AnsFactors affecting are:
 
●Plenty of sunlight
 
●Plenty of rainfall
 
9.Why are the western slopes of the Western Ghats covered with thick forests, and not the eastern slopes?
 
Ans Western slopes are located on the windward side of the western ghats and receive more rainfall from the winds originating from the Arabian sea , Eastern slopes on the other hand receive comparatively less or no rain.
 
10. How are forests important to us? State four points.(any four)
 
Ans Forests arerenewable resources and play a major role inenhancing the quality of environment:
 
1.modify local climate, 5. Provide livelihood for many communities
 
2.control soil erosion, 6. offer panoramic or scenic view for recreation
 
3.regulate stream flow,
 
4.support a variety ofindustries
 
11. State the factors that have led to the changes in India’s natural vegetation.
 
Ans India’s natural vegetation has undergonemany changes due to several factors such as:
 
*the growing demand for cultivated land.
 
*development of industries.
 
*mining.
 
*urbanisation and
 
*over-grazing of pastures.
 
12.a)Name any two regions that have natural vegetation in real sense.
 
Ans
 
*Insome inaccessible regions like the Himalayas
 
*the hilly regionsof central India
 
* themarusthali(desert type).
 
b)The vegetation cover of India in large parts is no more natural in real sense. Give two reasons.
 
Ans*the vegetation of most of the areashas been modified at some places.
 
*It has been replacedor degraded by human occupancy.
 
13. What was the actual forest area cover in India in the year 2001?
 
Ans) In 2001, the actual forestcover in India was only 20.55 per cent.
 
14.What is an ecosystem?
 
Ans All the plants and animals in an areaare interdependent and interrelated to eachother in their physical environment, thus,forming an ecosystem.
 
15. How do the human beings influence the ecology of a region?
 
Ans i) They utilise the vegetation andwild life.
 
ii)The greed of human beings leads toover utilisation of these resources.
 
iii) They cutthe trees .
 
iv) They kill the animals creatingecological imbalance.

v) They pollute the environment which leads to the extinction of flora and fauna.



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Download CBSE Practice Material: Class 9 Social Science Contemporary India Chapter 05 Natural Vegetation and Wildlife

CBSE Practice Material: Class 9 Social Science Contemporary India Chapter 05 Natural Vegetation and Wildlife

Access structured practice worksheets for Contemporary India Chapter 05 Natural Vegetation and Wildlife designed in alignment with the latest CBSE curriculum for Class 9 Social Science. These printable problem sets help students build accuracy and prepare effectively for school tests.

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Built using the official NCERT book for Class 9 Social Science, these practice materials provide reliable academic guidance. Pair your practice with our recommended NCERT solutions to master optimal problem-solving approaches.

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Yes, our CBSE Class 9 Social Science Natural Vegetation and Wildlife Worksheet Set 01 includes a variety of questions like Case-based studies, Assertion-Reasoning, and MCQs as per the 50% competency-based weightage in the latest curriculum for Class 9.

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