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emmybay02 emmybay02
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6 years ago
Which of the following elements is considered an essential macronutrient for plants?
 
  a. oxygen
  b. boron
  c. lithium
  d. silicon
  e. molybdenum

Question 2

Which of the following elements is considered an essential macronutrient for plants?
 
  a. zinc
  b. uranium
  c. iron
  d. nickel
  e. carbon
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