Name the following:- 1)Very old societies that developed on the banks of river Indus - Indus valley civilization 2)Relatives typically older than grandparents - Ancestors 3)The systematic record of significant events of history - Timeline 4)Any event taken place in the past - History 5)People who gather information & study about the past - Historians Fill in the blanks: 1. Carbohydrates are the main source of energy. So they are also called energy giving foods. 2. People who do a lot of physical work needs a lot of carbohydrates to get energy. 3. Fibres are rough coarse elements which help during the movement of food in our intestine. 4. Proteins are needed by our body to stay healthy, to grow, and to repair the body. They are also called as growing and repairing food . 5. Fats protect the human body from co...