The food we eat consists of so much variety. What are these food items made of? Certain items are needed to prepare a particular dish. Oil, salt, water, spices, etc. are among these items. Think about rice cooked at home. ...
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Do you know that desert plants absorb the sunlight during the day and take up carbon dioxide at night and prepare an intermediate which is acted upon by the energy absorbed by the chlorophyll during the day.
Magnesium is a reactive metal. It should be burned directly in air without cleaning. Still, it is cleaned before buruning. It is unnecessarily cleaned before burning.