NCERT Solutions for Class 9 Social science Chapter 5 Natural Vegetation and Wildlife are provided here with simple step-by-step explanations. These solutions for Natural Vegetation and Wildlife are extremely popular among Class 9 students for Social science Natural Vegetation and Wildlife Solutions come handy for quickly completing your homework and preparing for exams. All questions and answers from the NCERT Book of Class 9 Social science Chapter 5 are provided here for you for free. All NCERT Solutions for class Class 9 Social science are prepared by experts and are 100% accurate.
Question 1.
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) Thndra
(b) Tidal
(c) Himalayan
(d) Tropical Evergreen
Ans:
(d) Tropical Evergreen
(ii) 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
Ans:
(a) 100 cm
(iii) In which of the following states is the Simlipal’ bio-reserve located?
(a) Punjab
(b) Delhi
(c) Odisha
(d) West Bengal
Ans:
(c) Odisha
(iv) Which one of the following bio-reserves of India is not included in the world network of bioreserves?
(a) Manas
(b) Nilgiri
(c) Gulf of Mannar
(d) Nanda devi
Ans:
(a) Manas
Question 2.
Answer the following questions briefly.
(i) What factors are responsible for the distribution of plants and animals in India?
Ans: Distribution of plants and animals on the earth is determined mainly by climate. However the other factors are soil, relief and drainage, though most of them are also interrelated.
(ii) What is a bio reserve? Give two examples.
Ans: Bio-reserves are protected areas. This is done to protect the natural vegetation, wildlife, and the environment. 2 examples: 1. Sunderbans 2. Gulf of Mannar
(iii) Name two animals having their habitat in montane and tropical types of vegetation.
Ans: Tropical: Tiger, Elephant. Montane: Snow Leopard.
Question 3.
Distinguish between:
(i) Flora and Fauna
Ans: Plant species of a particular region is called flora and animal species of a particular region is called fauna.
(ii) Tropical Evergreen and Deciduous Forests.
Ans: Tropical Evergreen Forests: 1. They are called rain forest. 2. No definite time for trees to shed leaves. 3. Rainfall is more than 200 cm. Tropical Deciduous Forests: 1. They are called Monsoon forest. 2. Trees shed leaves for about six to eight weeks in dry summer. 3. Rainfall range is between 200 cm to 700cm.
Question 4.
Name different types of vegetation found in India and describe the vegetation of high altitudes.
Answer: 1. Tropical evergreen forests 2. Tropical deciduous forests 3. Tropical Thorn forests and scrubs 4. Montane forests 5. Mangrove forests Vegetation in high altitudes 1. Alpine vegetation found in altitudes above 3600 m. 2. Trees in these areas are junipers, birches and pines.
Question 5.
Quite a few species of plants and animals are endangered in India. Why?
Answer: 1. Increasing population 2. Pollution 3. Deforestation 4. 4. Hunting by poachers.
Question 6.
Why has India a rich heritage of flora and fauna?
Answer: 1. A country with diverse relief features 2. Availability of different types of soil. 3. Variation in climatic conditions.
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