Mention the significance of the following minerals:
(a) Iodine in our food.
(b) Magnesium for green plants.
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(a) Iodine is required for the synthesis of thyroxine by thyroid gland.
(b) Magnesium is required for the synthesis of chlorophyll.
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Why is Adrenaline called "The Emergency Hormone"?
Expand the abbreviation — ADH. Give one example of a diuretic substance.
State two objectives of Swachh Bharat Abhiyan.
Draw a neat, labelled diagram of a root hair.