With reference to Eutrophication, which of the following sta

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With reference to Eutrophication, which of the following statements is/are correct?

1) It decreases dissolved oxygen in water.

2) It is a phenomenon of nutrient enrichment of a water body.

Select the correct answer from the codes given below:

???????????? ?? ?????? ???, ?????????? ??? ?? ??? ??/?? ??? ??? ??/????

1) ?? ???? ??? ???? ??? ??????? ?? ?? ???? ???

2) ?? ?? ?? ????? ?? ???? ???? ??????? ?? ???? ???

???? ??? ?? ????? ??? ?? ??? ????? ?? ??? ????? :

[UPPSC 2020 P1]

1 only

केवल 1

2 only

केवल २

Both 1 and 2

दोनों 1 और 2

Neither 1 nor 2

न तो १ और न ही २