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A species which was introduced for ornam...

A species which was introduced for ornamentation but has become a trouble some weed in India:

A

Parthenium hysterophorus

B

Eichhornia crassipes

C

Prosopis juliflora

D

Trapa spinosa

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding the Question:** The question asks for a species that was introduced to India for ornamental purposes but has since become a troublesome weed. 2. **Analyzing the Options:** - **Option A: Parthenium hysterophorus (Carrot Grass)** - This species is known to be a weed and has become problematic in India. - However, it was not introduced for ornamental purposes, so this option is incorrect. - **Option B: Echinorhiza crassipes (Water Hyacinth)** - This species was indeed introduced to India for ornamental purposes. - It has become a significant problem in water bodies, leading to reduced oxygen levels and affecting aquatic life. - This option fits the criteria of the question, making it the correct choice. - **Option C: Prosopis juliflora (Kikkar)** - This species is native to India and not introduced for ornamental purposes, so this option is incorrect. - **Option D: Trapa bispinosa (Singhara)** - This species is also not introduced for ornamental purposes and is not a troublesome weed, making this option incorrect. 3. **Conclusion:** After analyzing all the options, the correct answer is **Option B: Echinorhiza crassipes (Water Hyacinth)**, which was introduced for ornamental purposes and has become a troublesome weed in India. ---
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