How does potassium help the body? Name one food item which is rich in potassium. [3 MARKS]
a) What would happen if sodium and potassium are kept in open air? [2 MARKS] b) Which gas is used for extinguishing flames? How does it work? [3 MARKS]
Name any five food items (including two fruits) which are rich in vitamin A.
Give two examples of food items that’s prepared by the help of microorganism other than curd? How is curd formed? [3 MARKS]