OBJECTIVE PRACTICE TEST

1. One area of study of applied biological sciences is

  1. Agriculture
  1. Chemistry
  1. Physics
  1. Electronics

2. The prohibition of certain acts or the use of certain things is known as

  1. superstition
  1. belief
  1. taboo
  1. tradition

3. A provisional answer to a question or problem in a scientific method is

  1. prediction
  1. hypothesis
  1. theory
  1. observation

4. The main difference between science and technology is that

  1. Science deals with “understanding” while technology deals with “doing”
  1. Science deals with “doing” while technology deals with “understanding”
  1. Science deals with the practical aspect of its results while technology deals with the development of general laws
  1. Science involves a thinking processwhile technology involves demonstrations

5. One of the bad effects of science and technology is that

  1. it has made the world look like a global village
  1. it has helped increase food production
  1. it has rendered some people jobless
  1. it has improved the transportation system

6. Which of these is not an example of matter?

  1. Iced block
  1. Air
  1. Light
  1. Smoke

7. Which of the following substances is a liquid at room temperature?

  1. Iron
  1. Mercury
  1. Brass
  1. Gold

8. How many states of matter do we have?

  1. 2
  1. 3
  1. 4
  1. 5

9. When salt is put into soup, it…

  1. melts
  1. sublimes
  1. dissolves
  1. evaporates

10. Gases have very low densities. This is because

  1. the particles are much closer to each other
  1. the particles are much further apart
  1. there are no spaces between the particles
  1. the particles are heavier

11. Which of the following statements about plants is true?

I – Most plants show movement;

II – Green plants manufacture their own food; III – All animals depend directly on plants for food

  1. I only
  1. II only
  1. III only
  1. I and II only

12. Which of the following processes takes place in all living cells?

  1. Digestion
  1. Photosynthesis
  1. Respiration
  1. Transpiration

13. The main component of plant cell walls is

  1. glucose
  1. cellulose
  1. starch
  1. fructose

14. Irritability is also known as

  1. development
  1. reproduction
  1. sensitivity
  1. respiration

15. An organism is considered as multicellular when

  1. it consists of only one cell
  1. it consists of only two cells
  1. it consists of billions of cells
  1. it has no cell

16. Which of the following values is equal to one metre?1 cm

  1. 10 cm
  1. 100 cm
  1. 1000 cm

17. The weight of an object is the

  1. force with which the sun pulls it
  1. force with which gravity acts on it
  1. force with which the moon pulls it
  1. force of the object when gravity is not acting on it

18. 100 km is equivalent to

  1. 100,000 m
  1. 100 m

19. Which of the following SI units is derived

  1. kilogram
  1. metre
  1. mole
  1. joule

20. Mass may best be defined as the

  1. amount of matter a substance contains
  1. amount of energy a substance containes
  1. amount of space occupied by matter
  1. amount of solid a substance contains

21. Ice floats on water because ice

  1. is denser than water
  1. is colder than water
  1. has a greater volume for the same mass of water
  1. has a greater mass for the same volume of water

22. An aluminium cube with side measuring 2m has a mass of 24 kg. Calculate the density of the aluminium.

  1. 48 kg/m3
  1. 24 kg/m3
  1. 12 kg/m3
  1. 3 kg/m3

23. Soil profile could be described as the

  1. physical arrangement of soil particles in the soil
  1. feel of the soil between the fingers
  1. amount of water held in the pores of the soil
  1. vertical section of soil showing soil layers

24. Which of the following practices is used to conserve moisture in the soil?

  1. Shading
  1. Mulching
  1. Pruning
  1. Stirring

25. The soil separate with the smallest particle size is

  1. coarse sand
  1. silt
  1. fine sand
  1. clay

26. Which of the following soil types is rich in organic matter?

  1. silt
  1. loam
  1. sand
  1. clay

27. Which of the following statements about the diagram below is correct?

  1. Illustrates an eclipse of the moon
  1. Portion X is called penumbra
  1. Illustrates an eclipse of the sun
  1. Portion Y is called Umbra

28. The type of soil which feels sticky at the fingers when wet is

  1. clay
  1. silt
  1. loam
  1. sand

29. Highly decomposed plant and animal matter is known as

  1. compost
  1. humus
  1. green manure
  1. loam

30. Which of the following crops is not correctly matched to its group?

  1. Yam —> tuber crop
  1. Ginger —> root crop
  1. Maize –> cereal crop
  1. Cocoa —> beverage crop

31. Which of the following crop groups does sorghum belong to?

  1. Cereals
  1. Legumes
  1. Root tubers
  1. Vegetables

32. Which of the following crops is a fruit vegetable?

  1. Cabbage
  1. Carrot
  1. Orange
  1. Tomato

33. Avenue trees are trees that are grown

  1. for their beautiful flowers
  1. to provide shade for drivers
  1. along the sides of roads
  1. for their fruits

34. Which of the following crops produces edible fruits?

  1. Stylosanthes
  1. Banana
  1. Cauliflower
  1. Cassava

35. Which of the following methods of plant propagation is sexual?

  1. Budding
  1. Grafting
  1. Layering
  1. Seeding

36. Weeds are plants that

  1. grow where they are not wanted
  1. cause diseases among crops
  1. add nitrates to the soil
  1. control soil nematodes

37. Pesticides used for controlling nematodes on the field are called

  1. insecticides
  1. acaricides
  1. rodenticides
  1. nematicides

38. Marigold is grown on the field to control

  1. fungi
  1. bacteria
  1. nematodes
  1. insects

39. The most destructive crop pests are

  1. ruminants
  1. insects
  1. rodents
  1. birds

40. What group name is given to agro-chemicals used in controlling armyworms on crops?

    Rodenticides
    Fungicides
    Herbicides
    Insecticides