Question 2456:

• JAMB 2021

Which of the following rocks is formed from shale?

A. Marble
B. Slate
C. Quartzite
D. Limestone

Question 2457:

• JAMB 2021

The horizon of a soil profile which encourages the greatest level of microbial activity is

A. A - horizon
B. B - horizon
C. C - horizon
D. D - horizon

Question 2458:

• JAMB 2021

The easiest method of determining soil texture in the field is by

A. Moulding
B. Sieving
C. Sedimenting
D. Feeling

Question 2459:

• JAMB 2021

The type of soil with a particle size of 0.02 to 0.002mm is

A. Clay
B. Slit
C. Fine sand
D. Coarse sand

Question 2460:

• JAMB 2021

If urea fertilizer contains 46% nitrogen, calculate the amount of nitrogen in 25kg bag of fertilizer?

A. 11.5kg
B. 13.5kg
C. 21.5kg
D. 26.5kg