Matching Pairs Real conditionsOnline version Match the parts of the sentence, CAUSE- EFECT, to make one correct by ELENA MA. CASTRO GARCIA 1 When icebergs melt, 2 If people don't eat or drink, 3 When people cut down trees, 4 If people don’t protect animals, 5 If you heat water, 6 If you use air conditioning wisely, 7 When you burn oil, 8 If you have a toothache, 9 When factories use fossil fuels, 10 If I am late, the greenhouse effect gets worse it boils my father takes me to school. it is deforestation you save up energy the sea level rises it produces greenhouse gases they become extinct you visit the dentist eventually they die.