Discussion

Match the List I and List II and select the correct answer from the codes given below :

List I (Projection)	List II (Area coverage/purpose)
(a) Bonne's	(1) Small longitudinal extent
(b) Mercator	(2) Navigational charts
(c) Polyconic	(3) Mid latitudes
(d) Mollweide	(4) Distribution map across the globe

Answer: B

The correct matching is a-3, b-2, c-1, d-4.

Bonne's projection, an equal-area conical projection, suits mid-latitude countries and continents.
Mercator's projection keeps true direction (rhumb lines are straight), so it is used for navigational charts.
The polyconic projection is accurate for areas of small longitudinal extent, as in topographical sheets.
Mollweide's equal-area projection shows distributions across the globe.

The other codes give Mercator to mid-latitudes or Bonne's to world maps, which is wrong.

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