Question 1
Which of the following is NOT a soil factor that affects crop yield potential?
◦ cation exchange capacity
◦ nutrient supply
◦ carbon dioxide concentration
◦ element toxicity
Question 2
Which of the following is NOT true regarding the actual and projected cereal and animal product consumption from 1970 to 2050?
◦ In 2008, total cereal consumption was lesser than the total cereal production.
◦ In 2050, the estimated cereal consumption is expected to reduce further when compared with total cereal production.
◦ Currently, world cereal production is meeting cereal demand.
◦ 4.93 billion hectare world agricultural land represent only 10% of yield potential of the most productive cropland.