1.Explain the principles on which Mercator’s Projection is constructed and sketch a portion of the grid from 0°-60°N. an

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1.Explain the principles on which
Mercator’s Projection is constructed and sketch a portion of the
grid from 0°-60°N. and 0°-60°E. Show that a straight line
represents a line of constant bearing, and indicate how the scale
can be determined at a given point.
2. A straight line cuts the
meridians on the Mercator projection and on the cylindrical
equal-area projection at a constant angle. Explain why in one case
the straight line is useful to mariners, and in the other, it is
not.