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2. The polluted water causes the death of many aquatic animals.
The polluted water leads to the death of many aquatic animals.
Because of the polluted water, many aquatic animals are dead.
Since the water is polluted, many aquatic animals are dead.
The polluted water makes many aquatic animals die.
3. Because it rained heavily, the music performance was cancelled.
Due to the heavy rain, the musical performance was cancelled.
4. Since there is too much carbon dioxide in the atmosphere, global warming happens.
Because of too much carbon dioxide in the atmosphere, global warming happens.
Too much carbon dioxide in the atmosphere makes global warming happen.
