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Q: Which one of the following surveys is used for economic importance for a country?
  • A. Land surveys
  • B. Geological surveys
  • C. Aerial surveys
  • D. Defence surveys
Correct Answer: Option B - Land surveying–To determine the boundaries and areas of parcels of land also known as property survey, boundary survey or cadastral survey. Aerial survey–Can be done with devices like drone, helicopter etc. • Not very accurate without being placed under any photogrammetry model. • Geological survey–This is used for determining different strata in the earth's crust. Geological survey is used for economic importance for a country.
B. Land surveying–To determine the boundaries and areas of parcels of land also known as property survey, boundary survey or cadastral survey. Aerial survey–Can be done with devices like drone, helicopter etc. • Not very accurate without being placed under any photogrammetry model. • Geological survey–This is used for determining different strata in the earth's crust. Geological survey is used for economic importance for a country.

Explanations:

Land surveying–To determine the boundaries and areas of parcels of land also known as property survey, boundary survey or cadastral survey. Aerial survey–Can be done with devices like drone, helicopter etc. • Not very accurate without being placed under any photogrammetry model. • Geological survey–This is used for determining different strata in the earth's crust. Geological survey is used for economic importance for a country.