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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Common sense tells us that the government's attempts to solve large problems more often create new ones. Common sense also tells us that a top-down, one-size-fits-all plan will not improve the workings of a nationwide health-care system that accounts for one-sixth of our economy.
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