Question

1. what methods can prevent the transmission of waterborne diseases?

investigate the causes and sources of waterborne disease and outbreaks
develop water, sanitation, and hygiene practices
educate the public on how to prevent waterborne disease
all of these help prevent waterborne illness

Explanation:

Investigating causes helps in targeted prevention. Developing water - sanitation - hygiene practices directly reduces disease vectors. Public education ensures individuals take preventive measures. All these contribute to preventing waterborne diseases.

Answer:

D. All of these help prevent waterborne illness