2023 JAMB Agricultural Science Past Questions

When a substance is oxidized, it

1. A.Loses electrons
2. B.Gains oxygen atoms
3. C.Gains electrons✓ Correct
4. D.Loses protons (H+ ions)

The Omani Empire declined in the 19th century due to

1. A.A. Internal power struggles
2. B.B. Natural disasters
3. C.C. Invasions from neighboring empires
4. D.D. European colonialism✓ Correct

This question is based on John Osbourne's Look Back in Anger The protagonist in the play is

1. A.Alison Porter
2. B.Cliff Lewis
3. C.Jimmy Porter✓ Correct
4. D.Colonel Redfern

What is the primary purpose of storage facilities in agriculture?

1. A.A. Offering a workspace for farm laborers✓ Correct
2. B.B. Storing and preserving harvested crops
3. C.C. Providing shelter for farm animals
4. D.D. Housing agricultural machinery and equipment

Which of the following is a reason for the high volume of trade between Nigeria and developed countries?

1. A.similarity of products
2. B.low level of technology✓ Correct
3. C.colonial Ties
4. D.presence of trade unions

Which of the following best accounts for the high population density in the Nile Valley?

1. A.Conducive climate✓ Correct
2. B.Migration from Europe during winter
3. C.Presence of rich alluvial winter
4. D.Presence of numerous oil fields

In electromagnetic induction, the generated electricity is actually a voltage called

1. A.Induced emf
2. B.Eddy current
3. C.Inductor voltage
4. D.Watts✓ Correct

Choose the option that has the same consonant sound as the one represented by the letter underlined. Epitaph.

1. A.Pneumonia.
2. B.Pseudo.
3. C.Fan.
4. D.Paper.✓ Correct

At what rate will the interest on N400 increases to N24 in 3 years reckoning in simple interest?

1. A.3%
2. B.2%✓ Correct
3. C.5%
4. D.4%

In the extraction of Aluminium, the silica impurity is removed by

1. A.electrolysis
2. B.filtration
3. C.reaction with H$_2$SO$_4$
4. D.precipitation✓ Correct