Correct option is A
The correct order of sentences is
BACD.
Explanation:
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B: The paragraph introduces the topic by describing neem as an evergreen tree found in the tropics and sub-tropics.
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A: It then provides specific classification information about neem, stating its family.
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C: Next, the text explains neem's unique and useful traits, including its insect-repellent properties and effect on soil nitrification.
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D: Finally, the paragraph describes where neem grows in India, adding geographical details.
Reconstructed Paragraph: B. Neem is an evergreen tree of the tropics and sub-tropics. A. It belongs to the family meliaceae. C. It is popular for its insect repellent traits and a unique property of inhibiting the nitrification process of the soil. D. In India neem grows in plains and in areas that reach an elevation of approximately 1850 metres.
This sequence forms a logical and coherent paragraph, starting with general information and ending with specific details.