Waec Agricultural Science 2013 Past Questions and Answers

Question 6:

• WAEC 2013

A socio-economic factor which affects the availability of land for agricultural use in West Africa is

A. Soil type
B. Population growth
C. Rainfall distribution
D. Working capital

Question 7:

• WAEC 2013

Which of the following factors affects the onset of flowering in crops?

A. Atmospheric pressure
B. Wind
C. Day length
D. Rainfall

Question 8:

• WAEC 2013

Marble is a metamorphic rock formed from

A. Limestone
B. Quartzite
C. Shale
D. Schist

Question 9:

• WAEC 2013

Which of the following statements best describes sediment rocks?

A. Pre-existing rocks in which the original mineral has undergone change
B. Weathered rock transported by wind to other places
C. Molten magma which has cooled down and solified
D. Rocks formed from breaking deposition and re-cementation of pre-existing rocks

Question 10:

• WAEC 2013

The rock weathering process involving the equation; CaCO₃ + H₂CO₃ → Ca(HCO₃)₂ is called

A. Carbonation
B. Hydration
C. Hydrolysis
D. Oxidation