Explanation:
Ground water is defined as the water present below the ground. When chemicals spill from factories, industries etc then they are absorbed by soil from where it flows through the pores present in it.
Pesticides and fertilizers also contain toxic substances which flow and absorbed by the ground when it rains.
Hence, they also contribute to water pollution.
Thus, we can conclude that ground water pollution can be caused by chemical spills, pesticides and fertilizers.
