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Select the option that correctly fills in the blank: The little birds ______ in the sky right now.
When iodine solution is added to a food item and it turns blue-black, the food contains:
Which one of the following is not helped by water in our body?
The mineral required for the formation of hemoglobin in blood is:
Which food item is richest in calcium and helps in making bones and teeth strong?
Which vitamin is naturally formed in the human body when exposed to sunlight?