Question 76:

• JAMB 2019

A soil may be called as alkaline when the pH of the soil is more than

A. 6.5
B. 5.5
C. 7.0
D. 5.0

Question 77:

• JAMB 2019

Which of the following requires Silicon (Si) for its growth?

A. Maize
B. Groundnut
C. Rice
D. Green grain

Question 78:

• JAMB 2019

Phalaris minor is a crop associated wood with crop

A. Wheat
B. Maize
C. Rice
D. Cotton

Question 79:

• JAMB 2015

The use of animal traction is limited in the forest zones of West Africa because of the

A. Topography of the forest land
B. Presence of tsetse flies
C. High amount of rainfall
D. Culture of the people

Question 80:

• JAMB 2015

The device which helps to stabilize heat in an incubator is the

A. Thermometer
B. Hygrometer
C. Barometer
D. Thermostat