The Water Hyacinth
The
water hyacinth grow in the Tropical countries. It has beautiful purple-blue
flowers, but everybody hates it, why?
Millions
and millions of these plants grow in rivers and lakes. Sometimes these plants
become so thick that people can walk on them. People cannot travel in boat on
the water, and they cannot fish in it. The plants stop the water from moving.
Then the water carries diseases. Farmer cannot use the water on their land.
Now
scientists think that water hyacinths can be useful. The plants are really the
free crop. No one has to take care of them. They just grow and grow and grow.
What can farmers use them for?
Some
fish like to eat them. Farmer can grow these fish in the lakes and rivers.
Worker can collect and cut the plants with machines. Then they can make
fertilizer to make their crop grow better. They can also make feed for their
farm animals.
Maybe
it will be possible to make methane gas for energy. (We burn gas from petroleum
for energy. Mathane gas come from plants). Then poor tropical countries will
not have to buy so much expensive petroleum. Maybe in the future people will
love the water hyacinth instead of hatting it.
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