13. If a stream or river stops flowing due to water scarcity, what disease may result from the stagnant water? malaria
hunger
sickle cell anemia
lung cancer

They are exposed to diseases, such as cholera and typhoid fever, and other water-borne illnesses. Two million people, mostly children, die each year from diarrheal diseases alone.

The answer is b, as with an inference you make a statement with no evidence