Question

With respect to Eichorrnia:
Statement X : It drains off oxygen from water and is seen growing in standing water.
Statement Y : It is an indigenous species of our country.

• A. Both statements X and Y are correct
• B. Both statements X and Y are wrong
• C. Only statement X is correct and Y is wrong
• D. Only statement Y is correct and X is wrong

Answer 1

The correct option is C Only statement X is correct and Y is wrong

• Eichorrnia can be seen growing in standing water. It drains off all the oxygen and leads to eutrophication. It adversely affects the aquatic life and increases the biological oxygen demand.
• A species is defined as indigenous to a given region or ecosystem if its presence in that region is the result of the only natural process, with no human intervention.
• So, Eichorrnia is not an indigenous species of our country.
• So, the correct answer is option C.