Do as directed. (10)
(1) How do microorganisms increase soil fertility ?
(2) Which activity would you do to prove that the temperature of a substance must reach
the combustion point of that substance in order to ignite it?
(3) How is petroleum made up ?
(4) Collect information and make a note on how food is preserved in your home.
(5) Make a note on which microorganisms are used in your home to make different dishes?
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When microorganisms decompose organic matter, they use the carbon and nutrients in the organic matter for their own growth. They release excess nutrients into the soil where they can be taken up by plants.
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