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What is food? And give its
importance.
Man must eat in order to live; therefore, one of
the most important problems man has is that of
always being certain that he will have enough to
eat when he needs it.
At first, man did not have any way to control his
food supply. For his food he uses the plants and
animals as he found them. He ate roots, seeds,
berries, eggs, fruits, honey, and the meat of
animals. Probably the food were not cooked or
prepared in any special way.
Even in small societies special knowledge was
necessary for hunting and fishing, for preparing
the food, and for preserving food for use at a later
time.
As we have said, at first man had no way to
control his food supply. When he had killed all the
animals in one place and all the natural foods
had been used, he had to move to another region
to find new sources of food. If there was no rain,
or if the weather was too hot or too cold, plants
would not grow and man had little or no food.
However, man gradually learned ways to grow
plants and raise animals himself. From that time
on, he was not so dependent on natural
conditions and did not have to worry so much
about always having enough food.
The kinds of plants which are raised by men are
different in each geographical or climatic region.
In the colder regions, very few plants can be
grown; in the warmer parts of the world, great
varieties of plants are found, but there is still
some specialization in particular kinds of plants.
For example, in Asia, rice is the most important
crop. In the New World, the major grain is corn
(or maize). In Europe and North Africa, wheat,
oats, and barley are grown. In the tropical regions
of the world, many kinds of fruit grow naturally or
are raised by men.
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