Nowadays, people are destroying rain forests of the earth seriously. It is (1)_______ that every year 100000 square kilometers of rain forests are (2)_______ for supply of wood paper and fuel as well as for the residence and (3)_______ land. Rain forests are very important for the world's climate. They receive the rainfall on the earth and produce a large amount of the world's oxygen. Destroying rain forests, (3)_____, is destroying our environment. Saving rain forest is an international problem. Nations need cooperation to (5)_____ rain forests, if not, it will be late.
Nowadays, people are destroying rain forests of the earth seriously. It is (1)___ estimated____ that every year 100000 square kilometers of rain forests are (2)___ destroyed____ for supply of wood paper and fuel as well as for the residence and (3)___ farming____ land. Rain forests are very important for the world's climate. They receive the rainfall on the earth and produce a large amount of the world's oxygen. Destroying rain forests, (3)__ therefore___, is destroying our environment. Saving rain forest is an international problem. Nations need cooperation to (5)___ save__ rain forests, if not, it will be late.
Nowadays, people are destroying rain forests of the earth seriously. It is (1) estimated that every year 100000 square kilometers of rain forests are (2) destroyed for supply of wood paper and fuel as well as for the residence and (3) farming land. Rain forests are very important for the world's climate. They receive the rainfall on the earth and produce a large amount of the world's oxygen. Destroying rain forests, (4) therefore, is destroying our environment. Saving rain forest is an international problem. Nations need cooperation to (5) save rain forests, if not, it will be late.