What are the disadvantages of using secondary data during a field study of a river?

      

Give the disadvantages of using secondary data during a field study of a river.

  

Answers


Maurice
(i) Conditions under which such data was collected may be changed.

(ii) Obtaining records on the particular river which was collected may be difficult.

(iii) Recorded data could be out of date.
maurice.mutuku answered the question on June 7, 2017 at 09:29


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