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Osmotic and matric potentials are commonly negative because the soil water has a lower energy level than that of pure water.
Q2: The greater the role specialisation and the
Q7: Each individual may evaluate the same belief
Q11: Which of the following is not a
Q14: Soluble organic N compounds are taken up
Q15: A growth in single-parent families would imply
Q30: Organic deposits are most common in areas
Q34: Light colored surface soils are likely to
Q35: The soils of the world contain more
Q39: Some soil colloids exhibit positive charges under
Q40: Removing all the straw with the harvest