Which of the following is/are the possible consequence/s of

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Which of the following is/are the possible consequence/s of heavy sand mining in river beds?

1. Decreased salinity in the river

2. Pollution of groundwater

3. Lowering of the water - table

Select the correct answer using the code given below:

?????????? ??? ?? ??? ?? ?? / ???? ??? ??? ???? ??? ??? ?? ??????? ?????? ????

1. ??? ??? ????? ??? ???

2. ???? ?? ???????

3. ???? ?? ?? ???? - ????

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

[UPSC IAS Prelims 2018,Ecology and Environment 2017-2020]

A (a)1 only

(a) केवल १

B (b)2 and 3 only

(b) २ और ३ ही

C (c)1 and 3 only

D (d)1, 2 and 3

(d) 1, 2 और 3

Excessive instream sand-andgravel mining causes the degradation of rivers. Instr...

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