Map Reading activity in EVS classes develops certain abilities and skills in primary students. Those are:
A. Understanding relative positions of places
B. Understanding directions of places
C. Understanding symbols and scale
D. Drawing precisely according to the scale maps

Correct option is B

Map reading activities help students understand the relative positions of places (A), the directions of places (B), and the symbols and scale used in maps (C). Drawing precisely according to scale maps (D) is more advanced and not typically expected at the primary level. Hence, the correct answer is (b) A, B and C.