Carbon dioxide concentrations in soil are ________ than in the atmosphere because ________.
A) lower; transpiration
B) lower; plant photosynthesis
C) higher; ongoing respiration in the ground
D) higher; decay of dead plants and animals
Correct Answer:
Verified
Q20: Which of the following is not one
Q21: Q22: The practice of leaving crop residue on Q23: A plant that is unable to extract Q24: Why is cation-exchange capacity (CEC) an important Q26: Between 1982 and 2007, soil erosion on Q27: Acidic soils Q28: The term used to denote the part Q29: A few centimeters' thickness of prime farmland Q30: A roughly equal mix of sand, silt,
A) are exceptionally rare.
B) cause more
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