d) Why do communicable diseases Occur? How do they spread?
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2
Answer:
communicable disease occar by the bites of flies and mosquitoes it spread by contact to each other and by water air etc
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1
Answer:
Communicable diseases also called infectious diseases can be spread from one person to another due to following mistakes.
1.close ontact.
2.sharig of infected things like toothbrush, razors and nail clippers etc.
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