Question

what are natural reasons for water pollution ?

Answer 1

Hey mate here is your answer

Water bodies include for example lakes, rivers, oceans, aquifers and groundwater. Water pollution results when contaminants are introduced into the natural environment. For example, releasing inadequately treated wastewater into natural water bodies can lead to degradation of aquatic ecosystems.

Hope this answer will help you!!

Answer 2

using high amount of fertilizers, pesticides and weedicides
using flow of sewage water
using industrial waste which flow on water body
over irrigation