Question

6. Why are loam soils generally better for root growth than pure sandy or pure clay soils?
A. They are mostly sand so drain extremely fast.
B. They are mostly clay so hold water and block roots.
C. They combine sand, silt, and clay, offering good drainage, moisture retention, and ease of root penetration.
D. They have no silt, which blocks root growth.
7. Which characteristic is NOT typical of sandy soils?
A. High drainage speed
B. Low nutrient-holding capacity
C. Easy for roots to penetrate
D. High water retention

Answer 1

6. C. They combine sand, silt, and clay, offering good drainage, moisture retention, and ease of root penetration.
7. D. High water retention — sandy soils actually have low water-holding capacity.