(3) Which one of the following is the best choice for a cover crop?.
Maize
Cassava
Sweet potatoes
Tomatoes
(4) Shading conserves water in the soil by ________________.
Reducing direct heat from the sun on the crop
Preventing water from evaporation
Leaving the waste pit to grow weeds
(5) Mulching conserves moisture in the soil by ___________
Preventing the sun from reaching the soil
Reducing moisture evaporating from the soil
Reducing run-off on the ground
Protecting the crop from the wind