Which of the following activity can lower the water table?Answer choicesSelect only one optionREVISITSoil erosionGrowth of human populationOver extraction of groundwaterOver grazing

The activity that can lower the water table is the over extraction of groundwater. Here's why:

1. Over extraction of groundwater: When we extract more water than what is naturally replenished, it leads to a decrease in the water table. This is because the rate of water being removed is greater than the rate of water being replaced. This is a common issue in areas with high population density or agriculture, where the demand for water is high.

2. Soil erosion, growth of human population, and overgrazing: While these factors can indirectly affect the water table by changing the landscape or increasing water demand, they do not directly lower the water table. For example, soil erosion can reduce the land's ability to absorb water, which can eventually lead to a lower water table. Similarly, a growing human population can increase the demand for water, leading to over extraction. Overgrazing can lead to land degradation, reducing the land's ability to absorb water. However, the direct cause in all these cases is still the over extraction of water.

So, the most direct answer to your question is over extraction of groundwater.