HSA 2006 Biology Item 52print

HSA 2006 Biology Item 52

CID
CID7ab01eae53040f809376dfedb8374f36
itemNum
52
initialLetter
F
itemType
SR
itemAnswerKey
4
itemMaxScorePoints
1
origNum
x

In the fall, the leaves of many plants change color. Which of the following abiotic factors is primarily responsible for causing this change?

  1. increased pH
  2. increased water
  3. decreased acidity
  4. decreased light

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