State any one reason why condensation is referred to as a physical change. 27. Write down any one advantage...

26. State any one reason why condensation is referred to as a physical change.
27. Write down any one advantage of using electricity in solving our daily problems.
28. Mention any one reason why white clothes should be washed first before washing clothes of other colours.
29. State any one way in which you can save your parents from paying high water bills at home.
30. State one reason why a cork of a thermos flask is made of rubber.
31. Write down any one activity a School Health Committee can do to control communicable diseases in the community.
32. Mention any one way in which sex education is important at school.
33. Explain how carbon dioxide supports the life of plants in the environment.
34. Name the part of a crab that has the same function as the spiracles of a grasshopper.