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1. The environment is affected in many ways by pollution.
2. We find it impossible to predict when the earthquake will happen. / We can't predict when the earthquake will happen.
3. Chemicals are being overused in their crops by some farmers.
4. If you leave the tap running while brushing your teeth, you will waste water.
5. Since special computers were invented, the paths of hurricanes have been predicted.
6. If the weather weren't bad, we could go hiking in the mountains.
7. How high were the waves in the Japan tsunami 2011?
8. If I were you, I would study English in the UK.
9. Specific regions will be affected in different ways by global warming.
10. The Hawaii volcano hasn't erupted for two years.
