Medical Quiz

Infectious Diseases & the WHO Quiz

What was the biggest source of contamination of fresh drinking water in early civilizations?

A. Animals living close to people

B. Lack of a water source (desert conditions)

C. Wells that are not dug deep enough

D. Aqueducts were not built high enough

Select your answer:
A  B  C  D  E 


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Other quiz: Cardiovascular System

Look at the structures and identify the name of each blood vessel

A. A: Vein
B: Artery
C :Capillary

B. A: Artery
B: Vein
C: Capillary

C. A: Capillary
B: Vein
C: Artery

D. A: Artery
B: Capilary
C: Vein