The over-use of groundwater resources has led to which of the following?

decline in groundwater table in some states. over withdrawals in some states, like Rajasthan and Maharashtra, has increased fluoride concentration in groundwater. this practice has led to increase in concentration of arsenic in parts of West Bengal and Bihar. All of the above

All of the above

The over-use of groundwater resources has led to decline in groundwater table in these states. In fact, over withdrawals in some states, like Rajasthan and Maharashtra, has increased fluoride concentration in groundwater, and this practice has led to increase in concentration of arsenic in parts of West Bengal and Bihar.