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