Hi Aqua!

Yes! These pictures are important to gain good score in the examination.
You have got to learn how to dram these the world map, the weather diagrams and Pictures of Land forms and some other. These pictures are really easy to make with a little practice.

How to Draw them?
You have got to understand that the real Image of globe or stone in the colored book is not easy to draw. You must seek to find notes or a book which could really help you to understand what to draw and how to draw it.

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