Complete the passage.
The seas are in danger. They are being filled with poison: industrial and nuclear waste, chemical fertilizers, pesticides and sewage. The Mediterranean is already nearly dead, the North sea is following. ... .
Every hour, 2 or 3 kinds of animals, plants or insects die out for ever.
If more people give more money, something of our great forests will be saved.
If nothing is done about it, one day soon nothing will be able to live in the seas.
Last year, we went to the Mediterranean.
Seventy tears ago three were 100,000 tigers in the world.
