Which one of the following elements plays a critical role in the formation of chlorophyll?
A) magnesium
B) manganese
C) calcium
D) zinc
Correct Answer:
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Q2: Which of the following would be the
Q3: Which of the following are problems associated
Q3: Which elements are most often the limiting
Q4: The B horizon of soil has _.
A)
Q5: A young farmer purchases some land in
Q6: Roots acidify the soil solution by releasing
Q8: How would you expect the root system
Q9: Which of the following soil minerals is
Q10: Which criteria allow biologists to divide chemicals
Q11: Which of the following would inhibit the
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