Which statement is true about a world isothermal map?
a) temperatures decrease from east to west.
b) there are more isotherms closer to the equator.
c) temperatures decrease from the tropics toward the poles.
d) isotherms become wider closer to poles.

The correct answer is option c

The world isothermal map shows the temperature range across the world.The temperature in the tropical regions are more as compared to the temperature on the poles.

The map shows the difference in the temperature of the different places across the world.

The map represents that the temperature decreases from the tropical regions towards the poles.