JAMB CBT PRACTICE TEST

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BIOLOGY LESSON NOTE ON HUMAN KIDNEY

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Lesson Note on the Human Kidney Topic: The Human Kidney Duration: 40 minutes Specific Objectives: By the end of the lesson, students should be able to: Define the kidney and state its location in the human body. Identify and describe the structure and functions of the kidney. Explain the processes involved in urine formation (filtration, reabsorption, and secretion). Describe how the kidney contributes to homeostasis. Identify common kidney-related diseases and how to prevent them. Evaluate the importance of maintaining kidney health. Lesson Content: 1. Introduction to the Human Kidney The kidneys are vital organs in the human body responsible for filtering waste from the blood and regulating water and electrolyte balance. They are part of the excretory system and play a crucial role in homeostasis. Location: The kidneys are located in the abdominal cavity, on either side of the spine, just below the rib cage. Each kidney is bean-shaped and about the size of a fi...
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WAEC Agricultural Science Past Questions and Answers (Objective Practice)

 

Introduction

Agricultural Science is an important WAEC subject that deals with the cultivation of crops, rearing of animals, soil management, agricultural economics, and farm tools. It helps students understand how food is produced and how farming contributes to national development. Success in Agricultural Science requires understanding both theory and practical concepts. This post provides WAEC-standard objective questions and answers for effective exam preparation.

OBJECTIVE QUESTIONS

Instruction: Choose the correct option A–D.

1–20: Basic Agricultural Science & Farm Tools

  1. Agriculture is the study of
    A. animals only B. cultivation of crops and rearing of animals C. machines D. trade
    Answer: B

  2. One branch of agriculture is
    A. physics B. crop production C. chemistry D. geography
    Answer: B

  3. The tool used for digging soil is
    A. cutlass B. hoe C. rake D. knife
    Answer: B

  4. A cutlass is mainly used for
    A. writing B. clearing bushes C. cooking D. measuring
    Answer: B

  5. The most important natural resource in agriculture is
    A. plastic B. soil C. iron D. cement
    Answer: B

  6. Soil is formed from
    A. rocks B. water C. oil D. plastic
    Answer: A

  7. The top layer of soil is called
    A. subsoil B. topsoil C. bedrock D. clay
    Answer: B

  8. A farmer who grows crops only is called
    A. livestock farmer B. arable farmer C. fisherman D. trader
    Answer: B

  9. Animals reared on farms are called
    A. crops B. livestock C. seeds D. weeds
    Answer: B

  10. Poultry farming involves rearing
    A. goats B. chickens C. cows D. sheep
    Answer: B

  11. One example of root crop is
    A. maize B. yam C. rice D. millet
    Answer: B

  12. One example of cereal crop is
    A. yam B. maize C. cassava D. potato
    Answer: B

  13. Agriculture provides
    A. food only B. food and raw materials C. clothes only D. oil only
    Answer: B

  14. A plough is used for
    A. harvesting B. tilling soil C. planting only D. spraying
    Answer: B

  15. Fertilizer is used to
    A. kill crops B. improve soil fertility C. destroy soil D. dry crops
    Answer: B

  16. Weeds are
    A. useful crops B. unwanted plants C. animals D. fertilizers
    Answer: B

  17. One method of controlling weeds is
    A. irrigation B. herbicide application C. fertilization D. pruning
    Answer: B

  18. Irrigation means
    A. removing crops B. supplying water to crops C. harvesting D. storing grains
    Answer: B

  19. Drainage is used to
    A. add water B. remove excess water C. plant crops D. harvest crops
    Answer: B

  20. A farm animal that produces milk is
    A. goat B. cow C. chicken D. fish
    Answer: B

21–40: Soil, Fertility & Crop Production

  1. Soil fertility means
    A. soil hardness B. ability of soil to support crops C. soil color D. soil depth
    Answer: B

  2. Organic manure comes from
    A. chemicals B. plants and animals C. stones D. plastics
    Answer: B

  3. Inorganic fertilizer is also called
    A. manure B. chemical fertilizer C. compost D. mulch
    Answer: B

  4. Compost manure is made from
    A. metals B. decomposed organic matter C. stones D. sand
    Answer: B

  5. Soil erosion is
    A. planting crops B. removal of topsoil C. watering plants D. harvesting
    Answer: B

  6. One cause of erosion is
    A. trees B. heavy rainfall C. mulching D. terracing
    Answer: B

  7. A method of preventing erosion is
    A. deforestation B. contour farming C. burning bushes D. overgrazing
    Answer: B

  8. Crop rotation is
    A. growing one crop always B. growing different crops in sequence C. harvesting crops D. planting trees
    Answer: B

  9. Mixed cropping is
    A. one crop only B. growing two or more crops together C. animal rearing D. irrigation
    Answer: B

  10. A nursery is used for
    A. storing tools B. raising young plants C. selling animals D. drying crops
    Answer: B

  11. Transplanting means
    A. removing weeds B. moving seedlings to field C. watering plants D. harvesting crops
    Answer: B

  12. Germination is
    A. death of seed B. sprouting of seed C. drying of seed D. storage of seed
    Answer: B

  13. Photosynthesis occurs in
    A. roots B. leaves C. stem only D. flower only
    Answer: B

  14. Chlorophyll is found in
    A. roots B. leaves C. soil D. fruits
    Answer: B

  15. One function of roots is
    A. photosynthesis B. absorption of water C. flowering D. seed production
    Answer: B

  16. Stem supports
    A. flowers only B. leaves and branches C. roots D. soil
    Answer: B

  17. One example of legume is
    A. maize B. beans C. rice D. yam
    Answer: B

  18. Legumes help in
    A. reducing soil fertility B. nitrogen fixation C. erosion D. pollution
    Answer: B

  19. Harvesting means
    A. planting seeds B. collecting mature crops C. watering crops D. spraying weeds
    Answer: B

  20. Storage of crops helps to
    A. spoil crops B. preserve crops C. destroy crops D. burn crops
    Answer: B

41–60: Animal Husbandry & Livestock

  1. Animal husbandry is
    A. crop farming B. rearing of animals C. fishing D. mining
    Answer: B

  2. Ruminant animals include
    A. chicken B. cow C. fish D. rabbit
    Answer: B

  3. Monogastric animals have
    A. multiple stomachs B. single stomach C. no stomach D. plant stomach
    Answer: B

  4. One example of poultry is
    A. goat B. chicken C. cow D. sheep
    Answer: B

  5. Fish farming is called
    A. horticulture B. aquaculture C. apiculture D. floriculture
    Answer: B

  6. Beekeeping is called
    A. poultry B. apiculture C. aquaculture D. sericulture
    Answer: B

  7. Sheep and goats are called
    A. poultry B. small ruminants C. insects D. fish
    Answer: B

  8. Animal feed is used for
    A. watering B. feeding livestock C. planting crops D. harvesting
    Answer: B

  9. Disease in animals is caused by
    A. sunlight B. pathogens C. water only D. soil
    Answer: B

  10. Vaccination is used to
    A. kill animals B. prevent diseases C. feed animals D. water crops
    Answer: B

  1. One sign of sick animal is
    A. healthy coat B. loss of appetite C. active movement D. fast growth
    Answer: B

  2. Housing for animals is called
    A. barn B. farmyard C. poultry house D. stable
    Answer: C

  3. Cow produces
    A. eggs B. milk C. silk D. wool only
    Answer: B

  4. Goat produces
    A. milk and meat B. only eggs C. silk D. oil
    Answer: A

  5. One function of livestock is
    A. decoration B. food production C. pollution D. erosion
    Answer: B

  6. Animal waste is used as
    A. fertilizer B. poison C. plastic D. fuel only
    Answer: A

  7. A veterinary doctor treats
    A. crops B. animals C. soil D. machines
    Answer: B

  8. Brooding is care of
    A. adult cows B. young chicks C. trees D. soil
    Answer: B

  9. Incubation is
    A. planting seeds B. hatching eggs C. harvesting crops D. feeding animals
    Answer: B

  10. Poultry feed includes
    A. sand B. grains C. stones D. soil
    Answer: B

61–80: Agricultural Economics & Extension

  1. Agricultural economics deals with
    A. farming tools B. production and distribution of farm goods C. weather D. animals only
    Answer: B

  2. Supply means
    A. demand only B. amount of goods available C. price only D. soil
    Answer: B

  3. Demand is
    A. supply B. desire backed with ability to pay C. weather D. land
    Answer: B

  4. Market is
    A. farm B. place of buying and selling C. forest D. river
    Answer: B

  5. Transport helps agriculture by
    A. spoiling goods B. moving farm products C. reducing farming D. increasing pests
    Answer: B

  6. Storage prevents
    A. preservation B. wastage C. farming D. planting
    Answer: B

  7. Agricultural extension helps farmers to
    A. fight B. learn improved methods C. steal D. waste time
    Answer: B

  8. Farm record keeping helps in
    A. confusion B. management C. destruction D. waste
    Answer: B

  9. Credit in agriculture means
    A. debt B. loan given to farmers C. tax D. profit
    Answer: B

  10. Subsidy is
    A. tax B. government support to farmers C. loan only D. fine
    Answer: B

81–100: Miscellaneous Agricultural Topics

  1. Pest is
    A. useful insect B. harmful organism C. crop D. fertilizer
    Answer: B

  2. One method of pest control is
    A. irrigation B. pesticide use C. planting D. harvesting
    Answer: B

  3. Herbicide kills
    A. animals B. weeds C. insects D. crops only
    Answer: B

  4. Insecticide kills
    A. weeds B. insects C. soil D. crops
    Answer: B

  5. Disease control in crops includes
    A. irrigation B. spraying chemicals C. planting trees D. harvesting
    Answer: B

  6. Irrigation is needed when
    A. water is enough B. water is scarce C. soil is fertile D. rain is heavy
    Answer: B

  7. Overgrazing leads to
    A. fertility B. erosion C. irrigation D. planting
    Answer: B

  8. Afforestation means
    A. cutting trees B. planting trees C. burning trees D. removing crops
    Answer: B

  9. Deforestation means
    A. planting trees B. cutting trees C. watering plants D. fertilizing soil
    Answer: B

  10. Agricultural science helps to
    A. increase hunger B. improve food production C. reduce farming D. destroy soil
    Answer: B

  11. Fish are reared in
    A. desert B. ponds C. forest D. soil
    Answer: B

  12. Poultry birds lay
    A. seeds B. eggs C. fruits D. milk
    Answer: B

  13. Farming system includes
    A. only crops B. crop and livestock integration C. music D. trade
    Answer: B

  14. Tractor is used for
    A. cooking B. ploughing C. eating D. selling
    Answer: B

  15. Irrigation improves
    A. crop yield B. soil destruction C. poverty D. crime
    Answer: A

  16. Mulching helps to
    A. reduce moisture loss B. increase erosion C. kill plants D. dry soil
    Answer: A

  17. Farmyard manure comes from
    A. animals B. rocks C. water D. plastic
    Answer: A

  18. Poultry farming produces
    A. meat and eggs B. oil C. steel D. cement
    Answer: A

  19. Crop yield means
    A. soil type B. quantity of harvest C. weather D. farming tool
    Answer: B

  20. Agricultural science is important because it
    A. reduces food B. increases food production C. destroys farms D. stops farming
    Answer: B

  21. Farm tools should be
    A. ignored B. maintained C. broken D. hidden
    Answer: B

  22. Soil texture refers to
    A. color B. particle size C. smell D. taste
    Answer: B

  23. Clay soil holds
    A. no water B. much water C. no nutrients D. air only
    Answer: B

  24. Sandy soil drains
    A. slowly B. quickly C. not at all D. never
    Answer: B

  25. Loamy soil is best for
    A. farming B. mining C. fishing D. trading
    Answer: A

  26. Farm mechanization uses
    A. machines B. animals only C. humans only D. water only
    Answer: A

  27. Irrigation is common in
    A. deserts B. oceans C. forests D. rivers only
    Answer: A

  28. Crop protection includes
    A. pest control B. theft C. war D. trade
    Answer: A

  29. Agriculture contributes to
    A. unemployment B. economy C. crime D. pollution only
    Answer: B

  30. Agriculture is important because it
    A. reduces food supply B. provides food and raw materials C. destroys economy D. stops development
    Answer: B

EXAM SUCCESS TIPS

  • Learn farm tools and their uses
  • Understand soil types and properties
  • Revise crop and animal production basics
  • Practice pest and disease control methods
  • Memorize agricultural terms and definitions
  • Study farm management and economics
  • Practice WAEC past questions regularly
  • Focus on practical agriculture concepts
  • Revise diagrams and processes
  • Stay consistent with revision and avoid cramming

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