3. Which of the following activities are involved in the rearing of tilapia? I. Feeding of fish II. Pond stocking III. Pest control *
1 point
4. The part of the flower that contains nectar is called *
1 point
5. Which of the following methods protects pure iron from rusting by coating with zinc? *
1 point
6. Leaching of nutrients from the soil leads to soil *
1 point
7. The hereditary material that is passed on from parents to offspring is known as *
1 point
8. The solar system is made up of the *
1 point
9. The type of management system which allows farm animals to roam about freely is known as *
1 point
10. External respiration in living organisms is also known as *
1 point
11. A rigid bar which is capable of turning about a fixed point is a / an *
1 point
12. A positively charged ion is called *
1 point
13. One way of ensuring that organisms are not endangered is to *
1 point
14. A good thermometric liquid must *
1 point
15. Which of the following metals will produce a gas when placed in lime juice? *
1 point
16. The physical property of a soil which is determined by the feel method is soil *
1 point
17. The reason why gaps are left in the joints of railway lines is to allow for *
1 point
18. Which of the following effects are caused by rusting? I. Loss of strength II. Loss of structure III. Loss of electrical conductivity *
1 point
19. Leguminous crops may often be cultivated to add *
1 point
20. A place where an organism can live and interbreed successfully is called *
1 point
21. Which of the following methods of treating water makes it soft? *
1 point
22. Dehusking and shelling are both activities carried out in the processing of *
1 point
23. Typhoid fever is transmitted through *
1 point
24. One advantage of friction is that it *
1 point
25. Sickle is a farm tool used for *
1 point
26. One characteristic of the image formed in a pin-hole camera is that the image is *
1 point
27. Transplanting of seedlings is usually done in the evening because *
1 point
28. Which of the following statements about molecules is/ are correct? Molecules I. are chemically combined group of atoms II. are physically combined group of atoms III. can exist on their own *
1 point
29. Fruits which are dispersed by wind are likely to be *
1 point
30. Which of the following materials allows electric current to pass through easily? *
1 point
31. Water contains two elements, hydrogen and oxygen, in the ratio of *
1 point
32. In the digestive system of ruminants, vitamins are synthesized in the *
1 point
33. The best way of protecting oneself from high blood pressure is to *
1 point
34. The property of metals which makes them to be easily drawn into thin wires is known as *
1 point
35. An atom of an element is represented as . How many neutrons are in the nucleus of the atom? *
1 point
36. Viable seeds are ones that *
1 point
37. Which of the following processes can occur at all temperatures? *
1 point
38. Which of the following human activities maintains the carbon cycle? *
1 point
39. The farming system which involves the growing of one type of crop on the same piece of land every season is known as *
1 point
40. The presence of chlorophyll in green plants is a necessary condition for photosynthesis because it *