Examination on Agricultural Science
Class: JSS 2
Term: Third Term
Time: 1 Hour
Total Marks: 70

SECTION A: OBJECTIVES (40 Marks)
Instruction: Answer all questions.

1. ________ is the science and art of cultivating fish and other aquatic animals. (a) Fishery (b) Agriculture (c) Forestry (d) Livestock
2. Which of these is a cartilaginous fish? (a) Tilapia (b) Catfish (c) Shark (d) Mackerel
3. All of these are common fishing gear except ________. (a) Net (b) Hook and line (c) Harvester (d) Trap
4. The practice of raising fish in controlled environments is called ________. (a) fish harvesting (b) fish farming (c) fish processing (d) fish catching
5. Which of these is NOT a type of forest found in Nigeria? (a) Mangrove forest (b) Rainforest (c) Derived forest (d) Taiga forest
6. A common example of an aquatic mammal is ________. (a) Crab (b) Turtle (c) Whale (d) Prawn
7. The main reason for deforestation is ________. (a) Reforestation (b) Overpopulation (c) Bush burning (d) Wildlife conservation
8. The correct practice in maintaining forest health is ________. (a) Indiscriminate felling (b) Controlled logging (c) Bush burning (d) Poaching
9. Which of these is not a nutritional use of fish? (a) Food source (b) Animal feed (c) Fuel production (d) Medicinal oil
10. Water pollution by industrial effluents can lead to ________ in fish. (a) growth (b) contamination (c) reproduction (d) migration
11. Fish are classified by habitat into freshwater and ________ fish. (a) deepwater (b) brackish water (c) saltwater (d) shallow water
12. Crabs and prawns are examples of ________. (a) aquatic reptiles (b) shellfish (c) bony fish (d) aquatic mammals
13. The process of repairing damaged fishing nets is known as net ________. (a) casting (b) mending (c) weaving (d) drying
14. Tropical rainforests are characterized by ________. (a) sparse vegetation (b) high rainfall (c) dry climate (d) sandy soil
15. One economic importance of fish is its contribution to ________. (a) air pollution (b) national income (c) soil erosion (d) desertification
16. Human activities like hunting and bush burning primarily cause ________. (a) forest expansion (b) wildlife depletion (c) increased rainfall (d) soil enrichment
17. A fish with a skeleton primarily made of bone is called a ________ fish. (a) cartilaginous (b) bony (c) marine (d) estuarine
18. The term “aquatic animals” refers to animals that live in ________. (a) deserts (b) forests (c) water (d) mountains
19. Derived forest is formed as a result of human interference in a ________. (a) mangrove forest (b) rainforest (c) savannah (d) grassland
20. Fish oil is a product of fish known for its ________ benefits. (a) cosmetic (b) industrial (c) nutritional (d) recreational
21. One major risk factor in fish farming is the presence of ________ in the water. (a) oxygen (b) clean water (c) chemicals (d) healthy fish
22. Turtles and crocodiles are examples of aquatic ________. (a) mammals (b) birds (c) reptiles (d) amphibians
23. A fishing method that uses a long line with multiple hooks is called ________. (a) Trawling (b) Gill netting (c) Longlining (d) Spearfishing
24. Trees, wildlife, and fruits are examples of ________ resources. (a) mineral (b) forest (c) aquatic (d) agricultural
25. The felling of trees without replanting is known as ________. (a) afforestation (b) reforestation (c) deforestation (d) agroforestry
26. Fish that live in water with high salt content are called ________ fish. (a) freshwater (b) brackish water (c) saltwater (d) riverine
27. Fish provide the body with essential ________ for growth and repair. (a) carbohydrates (b) fats (c) proteins (d) vitamins
28. Mangrove forests are typically found in ________ regions. (a) dry upland (b) coastal swampy (c) mountainous (d) desert
29. A common fishing gear used to catch a large number of fish at once is a ________. (a) hook (b) net (c) spear (d) rod
30. The depletion of wildlife is a negative effect of human activities like ________. (a) tourism (b) hunting (c) research (d) conservation
31. A benefit of forests to the environment is ________. (a) causing soil erosion (b) contributing to global warming (c) preventing desertification (d) increasing floods
32. Hippopotamus is an example of an aquatic ________. (a) reptile (b) bird (c) mammal (d) amphibian
33. The concept of fishery involves the management and harvesting of ________. (a) land animals (b) terrestrial plants (c) aquatic resources (d) aerial species
34. Contamination of fish with chemicals makes them ________ for human consumption. (a) safer (b) healthier (c) unsuitable (d) more nutritious
35. What class of fish has a skeleton primarily made of cartilage? (a) Bony fish (b) Cartilaginous fish (c) Freshwater fish (d) Saltwater fish
36. One way to reduce the negative impact of bush burning on forests is through ________. (a) indiscriminate burning (b) annual burning (c) controlled burning (d) continuous burning
37. Fish scales, fins, and gills are morphological features used for ________. (a) classification (b) cooking (c) preservation (d) reproduction
38. Which of these is a prevalent fishing area? (a) Deserts (b) Rivers (c) Mountains (d) Savannahs
39. The destruction of aquatic habitats by pollution affects the ________ of fish. (a) growth (b) reproduction (c) survival (d) all of the above
40. Forests provide ________ to various animals and plants. (a) desertification (b) shelter (c) drought (d) erosion

SECTION B: THEORY (30 Marks)
Instruction: Answer any THREE questions.

1. (a) Define fishery. (2 marks)
(b) List four common uses of fish and fish products. (3 marks)
(c) State three examples of forest resources. (3 marks)
(d) Differentiate between bony fish and cartilaginous fish. (2 marks)

2. (a) What are aquatic animals? (2 marks)
(b) Give three examples of aquatic mammals and two examples of aquatic reptiles. (3 marks)
(c) Explain two negative effects of human activities on forests. (3 marks)
(d) Mention two prevalent fishing areas. (2 marks)

3. (a) List two basic fishing gear. (2 marks)
(b) Describe the importance of net mending in fishing. (3 marks)
(c) Name and briefly describe two types of forests found in Nigeria. (3 marks)
(d) State two ways water pollution affects fish. (2 marks)

4. (a) Identify two major risk factors in water and fish farming. (2 marks)
(b) Discuss the nutritional importance of fish to humans. (3 marks)
(c) Explain how deforestation contributes to environmental problems. (3 marks)
(d) Give two examples of shellfish. (2 marks)

Objective Marking Scheme
Question 1 – ✅ (a) Fishery
Question 2 – ✅ (c) Shark
Question 3 – ✅ (c) Harvester
Question 4 – ✅ (b) fish farming
Question 5 – ✅ (d) Taiga forest
Question 6 – ✅ (c) Whale
Question 7 – ✅ (c) Bush burning
Question 8 – ✅ (b) Controlled logging
Question 9 – ✅ (c) Fuel production
Question 10 – ✅ (b) contamination
Question 11 – ✅ (c) saltwater
Question 12 – ✅ (b) shellfish
Question 13 – ✅ (b) mending
Question 14 – ✅ (b) high rainfall
Question 15 – ✅ (b) national income
Question 16 – ✅ (b) wildlife depletion
Question 17 – ✅ (b) bony
Question 18 – ✅ (c) water
Question 19 – ✅ (b) rainforest
Question 20 – ✅ (c) nutritional
Question 21 – ✅ (c) chemicals
Question 22 – ✅ (c) reptiles
Question 23 – ✅ (c) Longlining
Question 24 – ✅ (b) forest
Question 25 – ✅ (c) deforestation
Question 26 – ✅ (c) saltwater
Question 27 – ✅ (c) proteins
Question 28 – ✅ (b) coastal swampy
Question 29 – ✅ (b) net
Question 30 – ✅ (b) hunting
Question 31 – ✅ (c) Preventing desertification
Question 32 – ✅ (c) mammal
Question 33 – ✅ (c) aquatic resources
Question 34 – ✅ (c) unsuitable
Question 35 – ✅ (b) Cartilaginous fish
Question 36 – ✅ (c) controlled burning
Question 37 – ✅ (a) classification
Question 38 – ✅ (b) Rivers
Question 39 – ✅ (d) all of the above
Question 40 – ✅ (b) shelter