NCERT Solutions for Chapter 5 Natural Vegetation and Wildlife Class 9 Geography
Book Solutions1(i)
Choose the right answer from the four alternatives given below:
(i) To which one of the following types of vegetation does rubber belong to?
(a) Tundra
(b) Tidal
(c) Himalayan
(d) Tropical Evergreen
Answer
(d) Tropical Evergreen
Exercise
Page Number 51
1(ii)
Choose the right answer from the four alternatives given below:
Cinchona trees are found in the areas of rainfall more than
(a) 100 cm
(b) 50 cm
(c) 70 cm
(d) less than 50 cm
Answer
(a) 100 cm
Exercise
Page Number 51
1(iii)
Choose the right answer from the four alternatives given below:
In which of the following state is the Simlipal bio-reserve located?
(a) Punjab
(c) Odisha
(b) Delhi
(d) West Bengal
Answer
(c) Odisha
Exercise
Page Number 51
1(iv)
Choose the right answer from the four alternatives given below:
Which one of the following bio-reserves of India is not included in the world network of bioreserve?
(a) Manas
(b) Nilgiri
(c) Gulf of Mannar
(d) Nanda Devi
Answer
(a) Manas
Exercise
Page Number 51
2(i)
Answer the following questions briefly.
What factors are responsible for the distribution of plants and animals in India?
Answer
Factors responsible for the distribution of plants and animals in India are:
(a) Relief: Land and soil
(b) Climate: Temperature, Humidity, Photoperiod and Precipitation.
(a) Relief: Land and soil
(b) Climate: Temperature, Humidity, Photoperiod and Precipitation.
Exercise
Page Number 52
2(ii)
Answer the following questions briefly.
What is a bio-reserve? Give two examples.
Answer
Bio-reserves are the large areas where vegetation, wildlife and the environment are conserved to preserve the biological diversity. In totality there are 14 bio-reserves in India. For e.g. Sunderbans Bio-reserve in West Bengal and Nanda Devi Bio-reserve in Uttaranchal.
Exercise
Page Number 52
2(iii)
Answer the following questions briefly.
Name two animals having habitat in tropical and montane type of vegetation.
Answer
Tropical animals: Tiger, Elephant
Montane animals: Snow Leopard, Spotted dear
Montane animals: Snow Leopard, Spotted dear
Exercise
Page Number 52
3(i)
Distinguish between
Flora and Fauna
Answer
Flora | Fauna |
The Plant species of particular region or period are called Flora. | The animal species of particular region or period are called Fauna. |
Exercise
Page Number 52
3(ii)
Distinguish between
Tropical Evergreen and Deciduous forests
Answer
Tropical Evergreen Forests | Tropical Deciduous Forests |
These are also called Rain Forest | These are also called Monsoon Forest. |
Since the region is warm and wet throughout the year, there is no definite time for the trees to shed their leaves | The trees shed their leaves for about six to eight weeks in dry summer |
Examples: ebony, mahogany, rubber, rosewood | Examples: teak, bamboo, sandalwood, peepal, neem |
Common animals found in these forests are elephants and monkeys. | Common animals found in these forests are lions and tigers |
Present in areas receiving more than 200 cm of rainfall | Present in areas receiving rainfall between 200 cm and 70 cm |
Exercise
Page Number 52
4
Name different types of Vegetation found in India and describe the vegetation of high altitudes.
Answer
The different types of vegetation found in India are:
(i) Tropical Evergreen Forests
(ii) Tropical Deciduous Forests
(iii) Tropical Thorn Forests and Scrubs
(iv) Montane Forests
(v) Mangrove Forests
Alpine vegetation is found at places over 3,600 m in height. The trees common to these are silver fir, junipers, pines and birches. The trees get stunted as they reach the snow line. There are shrubs and scrubs that ultimately merge into Alpine grasslands. Tundra vegetation is limited to lichens and mosses.
(i) Tropical Evergreen Forests
(ii) Tropical Deciduous Forests
(iii) Tropical Thorn Forests and Scrubs
(iv) Montane Forests
(v) Mangrove Forests
Alpine vegetation is found at places over 3,600 m in height. The trees common to these are silver fir, junipers, pines and birches. The trees get stunted as they reach the snow line. There are shrubs and scrubs that ultimately merge into Alpine grasslands. Tundra vegetation is limited to lichens and mosses.
Exercise
Page Number 52
5
Quite a few species of plants and animals are endangered in India. Why?
Answer
Few species of plants and animals are endangered in India because of:
• Increase in population.
• Urbanization and Industrialization.
• Large scale deforestation.
• Pollution.
• Hunting for pleasure and commercial purpose, etc.
• Increase in population.
• Urbanization and Industrialization.
• Large scale deforestation.
• Pollution.
• Hunting for pleasure and commercial purpose, etc.
Exercise
Page Number 52
6
Why has India a rich heritage of flora and fauna?
Answer
India has a rich heritage of flora and fauna due to following reasons:
• India is a diverse country with different relief features (i.e. mountains, plateaus, plains, etc.) Different types of vegetations are found in these regions and the vegetations support different type of animals.
• Availability of different types of soil providing base for different type of vegetations.
• Variation in the climatic conditions (Temperature, humidity, etc.). Climate of India differs from north to south and east to west. Thus, supporting large variety of flora and fauna.
• India has a monsoon type of climate where rainfall varies from 20 cms to 300 cms distributed through out the year supporting large amount of flora and fauna.
• Variation in the duration of sunlight at different places due to difference in the latitude and altitude.
• India is a diverse country with different relief features (i.e. mountains, plateaus, plains, etc.) Different types of vegetations are found in these regions and the vegetations support different type of animals.
• Availability of different types of soil providing base for different type of vegetations.
• Variation in the climatic conditions (Temperature, humidity, etc.). Climate of India differs from north to south and east to west. Thus, supporting large variety of flora and fauna.
• India has a monsoon type of climate where rainfall varies from 20 cms to 300 cms distributed through out the year supporting large amount of flora and fauna.
• Variation in the duration of sunlight at different places due to difference in the latitude and altitude.
Exercise
Page Number 52
1
On an outline map of India, label the following.
(i) Areas of Evergreen Forests
(ii) Areas of Dry Deciduous Forests
(iii) Two national parks each in Northern, Southern, Eastern and Western parts of the Country
Answer
Map Skills
Page Number 52