WAEC Agricultural Science Past Questions & Answers - Page 16

76.

If maize seeds are sown at a spacing of 60 cm by 90 cm, what is the plant population of maize expected on one hectare of farmland?

A.

18,519 plants

B.

16,667 plants

C.

11,111 plants

D.

5,400 plants

Correct answer is D

No explanation has been provided for this answer.

77.

Swampy lands are most suitable for growing

A.

Yam

B.

Rice

C.

Maize

D.

Tomato

Correct answer is B

No explanation has been provided for this answer.

78.

Monocotyledonous crops include

A.

Oil palm, rice, and plantain

B.

Cowpea, pepper and tomato

C.

Garden egg, cassava and mango

D.

Rubber, cashew and orange

Correct answer is A

No explanation has been provided for this answer.

79.

Water can be conserved in the soil by

A.

Mulching, strip cropping and cover cropping

B.

Weeding, strip cropping and clean clearing

C.

Clean clearing, mulching, and strip cropping

D.

Cover cropping, mulching and weeding

Correct answer is A

No explanation has been provided for this answer.

80.

Nitrogen is important in plants because it is mainly needed in

A.

Fruit formation

B.

Root development

C.

Leaf formation

D.

Cell division

Correct answer is C

No explanation has been provided for this answer.