The osmotic pressure of the leaf cells is maximum in the afternoon, this shows relation with

Options :
  1. the high rate of respiration
  2. the high rate of photosynthesis
  3. the high rate of fat metabolism
  4. the upward movement of water in plants
Answer and Explanation :-

Answer: Option 4


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Society functions in a way much more interesting than the multiple-choice pattern we have been rewarded for succeeding at in school. Success in life comes not from the ability to choose between the four presented answers, but from the rather more difficult and painfully acquired ability to formulate the questions.
-David Mamet The Secret Knowledge: On the Dismantling of American Culture