State any one advantage of using a longer inclined plane for climbing.

Here are the answers to your questions:

11. One advantage of using a longer inclined plane for climbing is that it reduces the amount of force required to move an object to a higher elevation.

12. One activity done to reduce bad smell in latrines is regular cleaning and disinfection.

13. The function of white blood cells in the body is to fight infections and diseases as part of the immune system.

14. The part of the skeleton that protects the brain is the skull.

15. One property of matter is that it has mass (and occupies space).

16. Two products of respiration in the body are carbon dioxide and water (and energy).

17. Bee farmers are encouraged to grow flowering plants because they provide nectar and pollen, which are essential food sources for bees.

18. Apart from personal hygiene, one other way of keeping our eyes healthy is by eating a balanced diet rich in Vitamin A.

19. One importance of litter in a poultry house is that it absorbs moisture and droppings, helping to keep the house dry and clean.

20. The importance of change of colour in a mango fruit as it ripens is that it indicates maturity and readiness for consumption.

21. One method used in controlling unwanted pregnancies is contraception (e.g., using condoms or birth control pills).

22. One way of preventing electric appliances from being damaged by electricity is by using surge protectors.