Which is an essential trace element in plants?
A) Iron
B) Phosphorus
C) Copper
D) Sulfur
E) Nitrogen
Correct Answer:
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Q22: Many studies leading to our present knowledge
Q23: At present the most widely accepted theory
Q24: When humidity is high
A) transpiration rates increase.
B)
Q27: In which of the following situations will
Q29: An area within a plant where food
Q30: Plants obtain most of their mineral nutrients
Q31: The direction of movement of food molecules
Q32: All essential macro- and microelements exist as
Q33: Relatively uniform loss of color in leaves,
Q36: Approximately how much water typically leaves the
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