Which of the following plant species are main components of Thorn Forests? 1. Acacias 2. Palms 3. Euphorbias 4. Cacti Select the correct answer using the code given below:

Correct Option The correct option is (d). Explanation Thorn Forests and Scrubs are characteristic of regions receiving less than 70 cm of rainfall. This vegetation type is prevalent in the semi-arid areas of north-western India, including parts of Gujarat, Rajasthan, Madhya Pradesh, Chhattisgarh, Uttar Pradesh, and Haryana. Analysis of Species The vegetation in these forests consists primarily of thorny trees and bushes adapted to xerophytic (dry) conditions. The main plant species include: - Acacias: These are dominant trees in arid landscapes, known for their deep root systems and small leaves (e.g., Babool, Kikar). - Palms: Various species of wild palms (like Date Palms) are adapted to survive in low-moisture environments. - Euphorbias: These are succulent plants often mistaken for cacti, capable of storing water in their stems. - Cacti: These are quintessential xerophytes with modified leaves (spines) to reduce transpiration and succulent stems for water storage. Therefore, all the listed species-Acacias, Palms, Euphorbias, and Cacti-are main components of Thorn Forests. Key Takeaway Thorn Forests are defined by rainfall below 70 cm and feature xerophytic vegetation such as Acacias, Palms, Euphorbias, and Cacti. These plants possess adaptations like long roots, succulent stems, and small or modified leaves to minimize water loss.

Which of the following plant species are… - NCERT Class 9 Geography MCQ

NCERT Class 9 Geography — Chapter 1: Natural Vegetation and Wildlife

mcqeasy

Which of the following plant species are main components of Thorn Forests?

Acacias
Palms
Euphorbias
Cacti

Select the correct answer using the code given below:

NCERT textbook question

From NCERT Contemporary India - I · Page 42

Options

A1 and 4 only
B2 and 3 only
C1, 2 and 4 only
D1, 2, 3 and 4

Did you get this right?

Solution

Correct Option

The correct option is (d).

Explanation

Thorn Forests and Scrubs are characteristic of regions receiving less than 70 cm of rainfall. This vegetation type is prevalent in the semi-arid areas of north-western India, including parts of Gujarat, Rajasthan, Madhya Pradesh, Chhattisgarh, Uttar Pradesh, and Haryana.

Analysis of Species

The vegetation in these forests consists primarily of thorny trees and bushes adapted to xerophytic (dry) conditions. The main plant species include:

Acacias: These are dominant trees in arid landscapes, known for their deep root systems and small leaves (e.g., Babool, Kikar).
Palms: Various species of wild palms (like Date Palms) are adapted to survive in low-moisture environments.
Euphorbias: These are succulent plants often mistaken for cacti, capable of storing water in their stems.
Cacti: These are quintessential xerophytes with modified leaves (spines) to reduce transpiration and succulent stems for water storage.

Therefore, all the listed species-Acacias, Palms, Euphorbias, and Cacti-are main components of Thorn Forests.

Key Takeaway

Thorn Forests are defined by rainfall below 70 cm and feature xerophytic vegetation such as Acacias, Palms, Euphorbias, and Cacti. These plants possess adaptations like long roots, succulent stems, and small or modified leaves to minimize water loss.

Your note

More from Chapter 1: Natural Vegetation and Wildlife

With reference to Tropical Deciduous Forests in India, consider the following statements: 1. They are the most widespread forests of India. 2. They are also called monsoon forests. 3. They spread over regions receiving rainfall between 200 cm and 70 cm. 4. Trees of this forest type do not shed their leaves at all during the year. Which of the statements given above are correct?

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Consider the following statements regarding Dry Deciduous Forests: 1. They are found in areas having rainfall between 200 cm and 150 cm. 2. They are found in the rainier parts of the Peninsular plateau and the plains of Bihar and Uttar Pradesh. 3. Large parts of this region have been cleared for cultivation and grazing. Which of the statements given above are correct?

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In which of the following regions are Thorn Forests and Scrubs primarily found?

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Which one of the following medicinal plants is renowned for its high antibiotic and antibacterial properties?

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