Question

the major cause of water borne disease and why?​

Answer 1

Answer:

infected water

Explanation:

Answer 2

Answer:

There are two causes of water borne disease:

(I) Dangerous levels of chemicals, nitrates or heavy metals in the water supply due to industrial pollution or the over-use of agricultural chemicals.

(II) Dirt & Contamination - Bacteria, viruses and parasitic organisms invisibly contaminate the water and cause disease.