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Answers
Answer:
Explanation:
In the previous chapter, you have read that our planet
earth is not a sphere. It is slightly flattened at the
North and the South Poles and bulge in the middle.
Can you imagine how it looks? You may look at a
globe carefully in your classroom to get an idea.
Globe is a true model (miniature form) of the earth
(Figure 2.1).
Globes may be of varying size and type – big ones,
which cannot be carried easily, small pocket globes,
and globe-like balloons, which can be inflated and are
handy and carried with ease. The globe is not fixed. It
can be rotated the same way as a top spin or a potter’s
wheel is rotated. On the globe, countries, continents
and oceans are shown in their correct size.
It is difficult to describe the location of a point on a
sphere like the earth. Now the question arises as to
how to locate a place on it? We need certain points of
reference and lines to find out the location of places.
You will notice that a needle is fixed through the
globe in a tilted manner, which is called its axis. Two
points on the globe through which the needle passes
are two poles – North Pole and South Pole. The globe
can be moved around this needle from west to east
just as the earth moves. But, remember there is a major
difference. The real earth has no such needle. It moves
around its axis, which is an imaginary line.
Answer:
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