In trees, the growth rings represent

Options :
  1. primary xylem
  2. secondary phloem
  3. secondary xylem
  4. cambium
Answer and Explanation :-

Answer: Option 3

Explanation:

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Despair is the price one pays for setting oneself an impossible aim. It is, one is told, the unforgivable sin, but it is a sin the corrupt or evil man never practices. He always has hope. He never reaches the freezing-point of knowing absolute failure. Only the man of goodwill carries always in his heart this capacity for damnation.
-Graham Greene