combine each pair of sentences using conditional sentences type 1
1a person looks at the sky at night. he is not able to see the milky way by naked eye
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2 noise pollution happens regularly. it causes stress or nuisance
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3 water pollution gets more serious in the future. it affects the development of economy and society
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4 australia has invested in water in vn with good results. half of the population in the rural areas has access to fresh water
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5 you use compact light bulbs.you savea lot of energy
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6 we have more space we plant more trees
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