Question 591:

• JAMB 1988

The mineral nutrient that is most bound to the soil is

A. Phosphorus
B. Calcium
C. Iron
D. Potassium

Question 592:

• JAMB 1988

The mineral nutrient that easily gets leached out of the soil is

A. Phosphorus
B. Calcium
C. Magnesium
D. Nitrate

Question 593:

• JAMB 1988

Most commercial fertilizers are rich in salts of

A. Sodium, iron and calcium
B. Nitrogen, phosphorus and potassium
C. Iron, copper and nitrogen
D. Calcium, sodium and phosphorus

Question 594:

• JAMB 1988

Dead plants and animals are decomposed by bacteria and fungi into

A. Nitrate
B. Nitrites
C. Amino acids
D. Ammonium

Question 595:

• JAMB 1988

At what stage in this cycle can man be infected?

A. 2
B. 4
C. 5
D. 6