In the healthy environment of a sustainable soil,
A) the levels of humus steadily decline, but the aeration increases.
B) sandy or silty soils are steadily converted to clay soils.
C) abundant populations of bacteria are steadily replaced by mycorrhizae.
D) the humus-forming processes of topsoil is renewed by the addition of detritus and humus.
D
You might also like to view...
The spinning of a shrinking nebula marks the transition from a protostar to a star
Indicate whether the statement is true or false
From what process do all organisms use energy to power their physical, behavioral, and reproductive functions?
A) chemosynthesis B) photosynthesis C) anaerobic respiration D) cellular respiration E) cell division
Approximately what mass of ATP is required to raise the temperature of a person weighing 60 kg from room temperature, 25°C, to normal body temperature, 37°C?
A) 25 kg B) 50 kg C) 75 kg D) 100 kg
What is meant by salinization, and what are its consequences? How does irrigation cause salinization?
What will be an ideal response?