1)  The government should invest in renewable energy such as wind and solar power. 2)  You can save energy by insulating your house, turning off lights and using public transport. 3)  At the moment, we rely on fossil fuels such as coal, shale gas and oil to give us energy. 4)  Factories emit carbon dioxide and other greenhouse gases into the atmosphere. 5)  How can we protecr endangeres species such as orangutans, gorillas and tigers? 6)  If we don't reduce carbom emissions, the amount of CO2 in the atmosphere will go up.

UNIT 4H Ecology p119

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