ADMICRO

We are using up the world’s petroleum. We use (i) _______ in our cars and to heat our building in winter. Farmers use petrochemicals to make the soil rich. They use them to kill insects (ii) _______ eat plants. These chemicals go into rivers and lakes and kill the fish there. Thousands of pollutants also go into the air and pollute it. Winds carry this (iii) _______ air to other countries and other continents. Poor farmers use the same land over and over. The land needs a rest, so it will be better next year. However, the farmers must have food this year. In some areas when the trees are gone, the land (iv) _______ desert. The people and the nations of the world must work together to (v) _______ the world’s resources.

(iii)______

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