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First Conditional Y 6. If men (keep) polluting the environment, we will have no future.

7. If we (not stop) cutting down so many trees, we will (endanger) our oxygen supply.
8. Soon people will exhaust the Earth's resources if the human population (continue) to grow.
9. If everybody continues to use aerosols and CFCs, the hole in the ozone layer (get) bigger
10. If the sun's radiation cannot escape into space, Earth's temperature(increase) steadily.​