Question

According to De Martonne's classification, match the following:
A. < 30
B. 20-30
C. 10-20
D. > 5
Match with the following vegetation conditions:
I. True desert
II. Dry steppe
III. Prairies
IV. Forest vegetation
Choose the correct answer from the options given below:

• A. A-IV, B-III, C-II, D-I
• B. A-III, B-IV, C-I, D-II
• C. A-II, B-IV, C-I, D-III
• D. A-III, B-II, C-I, D-IV

Hint:

De Martonne's aridity index:
< 30: Prairies.
20-30: Dry steppe.
10-20: True desert.
> 5: Forest vegetation.

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
De Martonne's classification uses aridity indices.
Different indices correspond to different vegetation types.

Step 2: Key Formula or Approach:
No specific formula.
Need to know the classification system.

Step 3: Detailed Explanation:
De Martonne's classification:
Index < 30: Prairies (A-III).
Index 20-30: Dry steppe (B-II).
Index 10-20: True desert (C-I).
Index > 5: Forest vegetation (D-IV).
Thus, A-III, B-II, C-I, D-IV is the correct matching.

Step 4: Final Answer:
The correct matching is A-III, B-II, C-I, D-IV.
Hence, the correct option is (D).