At first, man did not have any way to control his food supply.. For his food he uses the plants and... Even in small societies special knowledge was necessary for hunting and fishing, fo
Trang 1What 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
Trang 2animals 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
Trang 3control 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
Trang 4The 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
Trang 5of the world, many kinds of fruit grow naturally or
are raised by men