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