WAEC Past Questions and Answers - Page 1485

7,421.

In a crop rotation system, it is usually preferred that cassava comes last in the rotation because it

A.

Adds nitrogen to the soil

B.

Is a shallow feeder

C.

Is a deep rooted crop

D.

Is a perennial crop

Correct answer is C

No explanation has been provided for this answer.

7,422.

Liquid fertilizers and pesticides could be applied through

A.

Furrow irrigation

B.

Channel irrigation

C.

Sprinkler irrigation

D.

Flood irrigation

Correct answer is C

No explanation has been provided for this answer.

7,423.

The soil horizon that is not supportive of the growth of tree crops is?

A.

Horizon A

B.

Horizon B

C.

Horizon C

D.

Horizon D

Correct answer is D

No explanation has been provided for this answer.

7,425.

The type of rock formed from accumulation of materials transported by water is called?

A.

Sedimentary rock

B.

Igneous rock

C.

Metamorphic rock

D.

Plutonic rock

Correct answer is A

No explanation has been provided for this answer.