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Technology
Hunger has become a serious problem in many parts of the world. The first cause of
hunger is the fast growth of (21).
its more than seven billion people. There is not enough land for growing food. The
change of climate also brings to
(22)...
Wars are still happening. People are fighting, or running away from home. There's
nobody to work on the field or in the... (23) .
(24)..
future, we will have warning systems to reduce the loss from natural disasters. Low-
cost means of (25)...
need.
factory
disasters
transport
population
The Earth is no longer able to feed
the
Earth
more
weather-related
. .such as storms and droughts. They heavily destroy crops.
to produce food.
is working hard to help solve part of this problem. In the
will also be used to carry food to area-in-