Q4. Fill in the blanks. 1. Energy is either absorbed or evolved when a is formed.2.help to increase the production of food.3. Heating causes change in a substance.4. Food items like jams and pickles are protected by using5. A metal which is a liquid at room temperature is6. Kerosene oil and water are twoliquids.

Q4. Fill in the blanks. 1. Energy is either absorbed or evolved when

1.	Q4. Fill in the blanks. 1. Energy is either absorbed or evolved when a is formed.2.help to increase the production of food.3. Heating causes change in a substance.4. Food items like jams and pickles are protected by using5. A metal which is a liquid at room temperature is6. Kerosene oil and water are twoliquids.
Answer» (3).. Latent heat(4).. Preservatives LIKE..(salt and sugar)(5).. Mercury (Hg)(6).. Seperating funnel Explanation:(1).. Energy is absorbed to break bonds, and Energy is EVOLVED as bonds bonds are made(2).. By genetically engineering crop based agriculture.Pls ,if you GOT it right!!, so that's good..other WISE sorry..if you didn't get it..and I have told all answers.. only I have doubt in question (6)..but I have explained also...Thank you for asking raising doubt!!!!All the best