Year :
2019
Title :
Agric Science
Exam :
JAMB Exam
Paper 1 | Objectives
11 - 20 of 80 Questions
| # | Question | Ans |
|---|---|---|
| 11. |
Which of the following nutrient is highly immobile in plants? A. B B. Mg C. K D. P Detailed SolutionBoron (B) is highly immobile because of its size. Therefore, choice A is correct. |
|
| 12. |
Blast of rice is a A. Viral disease B. Bacteria disease C. Fungal disease D. Deficiency of zinc disease Detailed SolutionBlast of rice is a fungal disease. Therefore, choice C is correct. |
|
| 13. |
A soil may be called as alkaline when the pH of the soil is more than A. 6.5 B. 5.5 C. 7.0 D. 5.0 Detailed SolutionA soil may be called as alkaline when the pH of the soil is more than 7.0 pH scale than is less than 7.0 is acidic while pH scale that is greater than 7.0 is alkaline. pH scale that is equal to 7.0 is neutral. Therefore, choice C is correct. |
|
| 14. |
Which of the following requires Silicon (Si) for its growth? A. Maize B. Groundnut C. Rice D. Green grain Detailed SolutionRice (Oryza Sativa) needs Silicon (si) for its growth. Choice C is correct. |
|
| 15. |
Phalaris minor is a crop associated wood with crop A. Wheat B. Maize C. Rice D. Cotton Detailed SolutionPhalaris minor is a crop associated with wheat. Choice A is correct. |
|
| 16. |
What is crop rotation? A. Growing of crops one after the other in a particular sequence B. Growing more than one crop at a time C. Growing of an associate crop in between the rows of the main crop D. Growing of crops together in strips Detailed SolutionChoice A is correct. Crop rotation involves the growing of crops one after other in a particular sequence |
|
| 17. |
The main mode of infection of rinderpest disease in cattle is through A. grazing B. drinking C. contact D. inhalation Detailed SolutionThe main made of infection of tinderpest disease is through inhalation of infected air by cattles. Choice D is correct |
|
| 18. |
The pox disease in livestock are caused by A. bacteria B. viruses C. protozoa D. fungi Detailed SolutionThe pox diseases in livestock are caused by viruses. Choice B is correct |
|
| 19. |
In poultry nutrition, the minerals that prevent the laying of thin-shelled eggs are A. calcium and phosphorus B. sodium and calcium C. phosphorus and sodium D. sulphur and phosphorus Detailed SolutionThe minerals that prevents the laying of thin-shelled eggs are calcium and phosphorus (Ca and P).Thin-shelled eggs in poultry nutrition laid as a result of the deficiency of calcium and phosphorus. Therefore, choice A is correct. |
|
| 20. |
In animal nutrition, iodine is essential for the production of A. oxygen B. thyrozine C. insulin D. progesterone Detailed SolutionIodine is essential for the production of thyroxine in animals. Therefore, choice B is correct. |
| 11. |
Which of the following nutrient is highly immobile in plants? A. B B. Mg C. K D. P Detailed SolutionBoron (B) is highly immobile because of its size. Therefore, choice A is correct. |
|
| 12. |
Blast of rice is a A. Viral disease B. Bacteria disease C. Fungal disease D. Deficiency of zinc disease Detailed SolutionBlast of rice is a fungal disease. Therefore, choice C is correct. |
|
| 13. |
A soil may be called as alkaline when the pH of the soil is more than A. 6.5 B. 5.5 C. 7.0 D. 5.0 Detailed SolutionA soil may be called as alkaline when the pH of the soil is more than 7.0 pH scale than is less than 7.0 is acidic while pH scale that is greater than 7.0 is alkaline. pH scale that is equal to 7.0 is neutral. Therefore, choice C is correct. |
|
| 14. |
Which of the following requires Silicon (Si) for its growth? A. Maize B. Groundnut C. Rice D. Green grain Detailed SolutionRice (Oryza Sativa) needs Silicon (si) for its growth. Choice C is correct. |
|
| 15. |
Phalaris minor is a crop associated wood with crop A. Wheat B. Maize C. Rice D. Cotton Detailed SolutionPhalaris minor is a crop associated with wheat. Choice A is correct. |
| 16. |
What is crop rotation? A. Growing of crops one after the other in a particular sequence B. Growing more than one crop at a time C. Growing of an associate crop in between the rows of the main crop D. Growing of crops together in strips Detailed SolutionChoice A is correct. Crop rotation involves the growing of crops one after other in a particular sequence |
|
| 17. |
The main mode of infection of rinderpest disease in cattle is through A. grazing B. drinking C. contact D. inhalation Detailed SolutionThe main made of infection of tinderpest disease is through inhalation of infected air by cattles. Choice D is correct |
|
| 18. |
The pox disease in livestock are caused by A. bacteria B. viruses C. protozoa D. fungi Detailed SolutionThe pox diseases in livestock are caused by viruses. Choice B is correct |
|
| 19. |
In poultry nutrition, the minerals that prevent the laying of thin-shelled eggs are A. calcium and phosphorus B. sodium and calcium C. phosphorus and sodium D. sulphur and phosphorus Detailed SolutionThe minerals that prevents the laying of thin-shelled eggs are calcium and phosphorus (Ca and P).Thin-shelled eggs in poultry nutrition laid as a result of the deficiency of calcium and phosphorus. Therefore, choice A is correct. |
|
| 20. |
In animal nutrition, iodine is essential for the production of A. oxygen B. thyrozine C. insulin D. progesterone Detailed SolutionIodine is essential for the production of thyroxine in animals. Therefore, choice B is correct. |