Disease-causing microbes have a negative impact on the body.
Microbes are also called microorganisms.
Disease-causing microorganisms have a negative impact on the body.
What has a negative impact on the body?

(a) disease-causing microorganisms
(b) air
(c) water
(d) wind and erosion
(e) food
(f) smallest agents of disease
(g) exposure to cold
(h) influenza orthomyxoviruses