Science H.W (22/4/17)

Comprehension Task:

Answer the following questions in NB2.

  1. Name the four major groups in which the microorganisms are classified into?
  2. Mention at least two diseases which are caused by the different microorganisms.
  3. Which gas is released during the preparation of bread?
  4. Mention any four ways in which bacteria is useful to us and two ways in which they are harmful?
  5. Write a short note on virus?
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