• Natural Vegetation and Wild Life (Class IX)
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Natural Vegetation and Wild Life (Class IX)

Description: Geography
Number of Questions: 16
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Tags: Geography Social Studies Class IX Natural Vegetation and Wild Life
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Which of the following are not a part of natural vegetation?

a. Forests b. Orchards c. Cultivated crops

  1. a, b and c

  2. a and b

  3. a and c

  4. b and c

  5. only c

Show answer
Correct Option: D
Explanation:

This is the correct answer as natural vegetation refers to a plant community which has grown naturally without human aid and has been left undisturbed by humans for a long time. Thus, cultivated crops and fruit orchards are a part of vegetation but not natural vegetation.

Which of the following statements is/are correct?

a. There are approx. 47,000 flowering plants in India. b. There are approx. 90,000 species of animals in India. c. India occupies tenth place in the world and fourth in Asia in plant diversity.

  1. a, b and c

  2. a and b

  3. a and c

  4. b and c

  5. only c

Show answer
Correct Option: D
Explanation:

This is the correct answer as both statements are correct.

Which of the following factors affect the variations found in photoperiod?

a. Latitude b. Altitude c. Season d. Temperature

  1. a, b, c and d

  2. a, b and c

  3. a, b and d

  4. a, c and d

  5. b, c and d

Show answer
Correct Option: B
Explanation:

This is the correct answer. The variation in duration of sunlight at different places is due to differences in latitude, altitude, season and duration of the day.

Which of the following reasons is/are valid for saying that forests are important for human beings?

  1. They support industries and provide livelihood.

  2. They control wind force and temperature and cause rainfall.

  3. They are a non-renewable resource of the nation.

  4. Both (1) and (2)

  5. All of the above

Show answer
Correct Option: D
Explanation:

This is the correct answer as both options 1 and 2 are valid reasons for saying that forests are important for human beings.

Which of the following reasons best explains the statement 'the vegetation cover of India is no more natural in the real sense'?

  1. Because the exotic plants have been added to the vegetation

  2. Because the endemic species are threatened

  3. Because much of the land has been taken over by cultivated crops

  4. Because vegetation has been modified, replaced or degraded by human occupancy

  5. None of these

Show answer
Correct Option: D
Explanation:

This is the correct answer. Natural vegetation is the vegetation that has been left undisturbed by the humans for a long time. Additions in or replacement of natural vegetation of exotic species, crop cultivation and degradation by human occupancy can be said to be reasons behind the statement that 'the vegetation cover of India is no more natural in the real sense'.

Which of the following statements is/are correct about a biome?

  1. A biome is a very large ecosystem on land having distinct types of vegetation and animal life.

  2. A biome is identified on the basis of its wildlife.

  3. Human beings are not considered a part of biome.

  4. All interdependent and interrelated plants and animals in an area are considered a biome.

  5. Both (1) and (2)

Show answer
Correct Option: A
Explanation:

This is the correct answer as this statement is correct.

Which of the following areas do(e)s not have tropical evergreen forests?

  1. Western Ghats

  2. Andaman and Nicobar and Lakshadweep island groups

  3. Upper parts of Assam

  4. Coromandel coast

  5. Tamil Nadu coast

Show answer
Correct Option: D
Explanation:

This is the correct answer as Coromandel coast is a part of Eastern Ghats, which are lower than Western Ghats and also receive less rainfall. This area does not have tropical evergreen forests.

Thorn forests are found in the north-western part of the country. Which of the following trees is not a main plant species of thorn forests?

  1. Acacia

  2. Cactus

  3. Palm

  4. Bamboo

  5. Euphorbia

Show answer
Correct Option: D
Explanation:

Bamboo grows in dry deciduous forests. This is the correct answer.

Which of the following types of forests are the most widespread in India?

  1. Tropical evergreen forests

  2. Tropical deciduous forests

  3. Tropical thorn forests

  4. Montane forests

  5. Mangrove forests

Show answer
Correct Option: B
Explanation:

This is the correct answer as these are the most widespread forests of India and are also called the monsoon forests.

Which of the following statements is/are incorrect?

a. Tropical evergreen forests have a multilayered structure of vegetation. b. Tropical evergreen forests grow in regions that are warm and wet throughout the year with a short dry season. c. The trees in tropical evergreen forests reach up to the height of 80 metres or even above.

  1. a only

  2. b only

  3. c only

  4. a and b

  5. b and c

Show answer
Correct Option: C
Explanation:

This is an incorrect statement. The trees in tropical evergreen forests reach up to the height of 60 metres or even above. Thus, this is the correct answer choice.

Which of the following animals are found in thorn forests?

a. Rats b. Rabbits c. Foxes d. Wild asses e. Horses f. Camels

  1. a, b, c, d, e and f

  2. a, c, d and f

  3. a, b, d, e and f

  4. a, d, e and f

  5. b, d and f

Show answer
Correct Option: A
Explanation:

This is the correct answer as all these animals are found in thorn forests.

Sundari trees provide durable hard timber. They are found in which of the following areas?

a. Ganga Brahmaputra delta b. Mahanadi delta c. Godavari delta

  1. a, b and c

  2. a and b

  3. a only

  4. b and c

  5. a and c

Show answer
Correct Option: C
Explanation:

This is the correct answer as the Ganga Brahmaputra delta is also called Sundarbans as this delta has sundari trees.

Which of the following statements is/are correct?

a. Oaks and chestnuts predominate in montane forests between 1500 and 3000 metres. b. At high altitudes such as 3600 metres above the sea level, temperate forests give way to grasslands. c. Mosses and lichens form part of tundra vegetation at higher altitudes.

  1. a only

  2. b only

  3. c only

  4. b and c

  5. a, b and c

Show answer
Correct Option: C
Explanation:

This is the correct answer as at higher altitudes, mosses and lichens form part of tundra vegetation.

The Gir Forest is the last remaining habitat of which of the following animals?

  1. Leopards

  2. Shaggy horned wild oxen

  3. Ghariyal

  4. Asiatic lion

  5. Ibex

Show answer
Correct Option: D
Explanation:

This is the correct answer. The Gir Forest is the last remaining habitat of the Asiatic lion.

Which of the following biosphere reserves is not in the World Network of Biosphere Reserves?

  1. The Sunderbans

  2. Nanda Devi Reserve

  3. Gulf of Mannar

  4. Manas

  5. Nilgiris

Show answer
Correct Option: D
Explanation:

This is the correct answer as the Manas Bioreserve has not been included in the World Network of Biosphere Reserves.

Which of the following pairs is incorrectly matched?

  1. Sarpgandha : Blood pressure

  2. Jamun juice : Diuretic

  3. Arjun leaves : Ear ache

  4. Kachnar : Cough and cold

  5. Babool leaves : Eye sores

Show answer
Correct Option: D
Explanation:

This is paired incorrectly as Kachnar is used to cure asthma and ulcers. 

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