health and hygiene

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Across
  1. 2. smallest form of bacteria
  2. 4. major illness caused due to non-availability of sanitation facilities
  3. 5. You should wash your hands for ______ seconds.
  4. 6. strongest muscle of man
  5. 7. the single most effective way to prevent the transmission of disease
Down
  1. 1. fruit rich in potassium
  2. 3. acts as a fuel in driving the body