If you want an answer you should use correct grammar. By the sounds of it you are a very common CHAV.
If you mean:
How much of the world is covered by rainforest, the answer is 6%
If you mean:
How many rainforests are there in the world, the answer is around 24
Wood is taken from rain forests, so much that today's rain forests are a fraction of their original size. Medicines can be made from chemicals in rain forest plants.
Only about 7% of the word's trees are in rain forests.
the answer is your momma!!!!!
Approximately 6% of the world's forests are classified as rainforests.
Why would rain forests have any other different type of rain than any other place on the world? Rain forests have normal rain from normal clouds.
the amazon is the largest rainforest in the world
Deserts receive much less rain than rain forests.
the rain forests important because of oxygen [the teachers will give you A+
How much rain forest does a rain forest get each year... Well, I would say that a rain forest can't really get any rain forests in a year, but Tropical rain forests get about 200-600 cm of rain each year, and Temperate Rain forests get 200-400 cm of rain each year.
About 20%
In the rain forests.
Brazil