Respuesta :

looringhighjump

Answer:

Mistakes:

  1. its
  2. theyve
  3. scientists
  4. known,
  5. size
  6. professor
  7. now"

Explanation:

  1. There´s a missing apostrophe, the correct grammar is "it's"
  2. There´s a missing apostrophe between "they" and "ve"
  3. There´s a missing apostrophe after the word "scientists"
  4.  There should be no comma after the word "known"
  5. There should be a comma after the word "size" to separate the two clauses.
  6.  The word "professor" requires a capital letter.
  7. There should be a period mark after the word "now"

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