state gov TNPSC Group 2/2A (தமிழ்நாடு) Mock Test 2024 General Knowledge Science Technology and Inventions
Consider the following statements:
a) A Geographic Coordinate System uses a three-dimensional spherical surface to define locations on the Earth.
b) A Projected Coordinate System uses a flat, two-dimensional surface to define locations on the Earth.
c) A Datum is a mathematical model of the earth used to calculate the coordinates on any map.
Which of the above statements is/are incorrect?
1
Only a and
2
Only b and c
3
Only a and c
4
None