NCERT Solutions for Class 9 Geography Chapter 5 – Natural Vegetation and Wildlife (Social Science), contains solutions to various questions in Exercise for Chapter 5. At the end of the Solutions, all the keywords which are important to understand Natural Vegetation and Wildlife Class 9 Geography, have been explained in a simple and easy to understand manner. We are providing NCERT Solutions for Class 9 all subjects which can be accessed by clicking here.
NCERT Solutions for Class 9 Geography Chapter 5 – Natural Vegetation and Wildlife Exercises includes Question/Answers which helps you to understand the topic covered in Natural Vegetation and Wildlife Class 9 Geography (Social Science), in a better manner to help you to score good marks in your examinations.
NCERT Solutions for Class 9 Geography Chapter 5 – Natural Vegetation and Wildlife – NCERT Exercises
Ques.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?
(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
(iii) In which of the following state is the Simlipal bio-reserve located?
(d) West Bengal
(iv) Which one of the following bio-reserves of India is not included in the world network of bio reserve?
(c) Gulf of Mannar
(d) Nanda Devi
Ans.1: Correct alternative:
(i) (d) Tropical Evergreen
(ii) (a) 100 cm
(iii) (c) Odisha
(iv) (a) Manas
Ques.2: Answer the following questions briefly.
(i) What factors are responsible for the distribution of plants and animals in India?
(ii) What is a bio-reserve? Give two examples.
(iii) Name two animals having habitat in the tropical and montane type of vegetation.
(i) The factors responsible for the distribution of plants and animals in India are:
a. Relief features: This includes land and soil.
b. Climatic Factors: These are temperature, photoperiod, and precipitation
(ii) A bio-reserve is a protected area formed to protect the flora and fauna found in a region. Any kind of human intervention inside these bio-reserves is prohibited. For example, the Sundarbans and the Great Nicobar.
(iii) Tropical habitat: Elephant and lemur
Montane habitat: Kashmir stag and Tibetan antelope
Ques.3: Distinguish between
(i) Flora and Fauna
(ii) Tropical Evergreen and Deciduous forests
(i) The total of all the plant species and vegetation found in a region is known as flora, while the total of all the animal species is known as fauna.
Ques.4: Name different types of vegetation found in India and describe the vegetation of high altitudes.
Ans.4: Different type of vegetation found in India are:
(a) Tropical Evergreen Forests
(b) Tropical Deciduous Forests
(c) Tropical Thorn Forests and Scrubs
(d) Montane Forests
(e) Mangrove Forests
Montane forests or Vegetation of high altitudes:
- The montane vegetation is found in mountainous areas.
- The wet temperate forests are found at heights of 1000 and 2000 meters. The important tree includes chestnut and oak.
- At the heights between 1500 and 3000 meters, coniferous vegetation predominates. Trees include pine, cedar, spruce, silver fir, and deodar. These are found on the southern Himalayan slopes.
- Further higher, temperate grasslands are found. After 3,600 meters, alpine vegetation starts to appear. Trees like junipers, silver fir, birches, and pine are found.
- Even higher reaches gradually contain shrubs and scrubs which give way to Alpine grasslands. These are used for grazing by the nomadic tribes.
- At even higher reaches, all vegetation ceases to exit and only mosses and lichen are found.
- The fauna of these forests includes Kashmir stag, spotted dear, wild sheep, jackrabbit, Tibetan antelope, yak, snow leopard, rare red panda, sheep and goats with thick hair.
Ques.5: Quite a few species of plants and animals are endangered in India. Why?
Ans.5: Quite a few species of plants and animals are endangered in India. The reasons include:
- Introduction of alien species
- Increased cultivation and urbanisation
Ques.6: Why has India a rich heritage of flora and fauna?
Ans.6: Following are the reasons why India has a rich heritage of flora and fauna:
a. Variations in relief features: It provides variations in temperature and weather conditions, resulting in different flora and fauna.
b. Variations in soil conditions: Different type of soil contain different nutrients, composition, and water content, thereby supporting varied vegetation.
c. Variations in climatic conditions: Different climatic conditions cause differences in temperature and precipitation, which in turn affects the biodiversity of a region.
Important Terms Relevant for NCERT Solutions for Class 9 Geography Chapter 5 – Natural Vegetation and Wildlife
Natural vegetation: The vegetation that has grown naturally without any human aid and has been left undisturbed by humans for a long time is known as virgin vegetation or natural vegetation.
Flora: The total of all the plant species and vegetation found in a region is known as flora.
Fauna: The total of all the animal species is known as fauna.