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Which of the following is/are the possible consequence(s) of heavy sand mining in riverbeds? 1. Decreased salinity in the river 2. Pollution of groundwater 3. Lowering of the water-table

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1. Which of the following is/are the possible consequence(s) of heavy sand mining in riverbeds? 1. Decreased salinity in the river 2. Pollution of groundwater 3. Lowering of the water-table

2 and 3 only

1 only

1 and 3 only

1, 2 and 3

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Which of the following is/are the possible consequence(s) of heavy sand mining in riverbeds? 1. Decreased salinity in the river 2. Pollution of groundwater 3. Lowering of the water-table

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