Matching Pairs Unlock 3 Listening U5 L1 vocabOnline version Match the two halves of the sentences. Pay attention to the words in BOLD by Marci D Nelson Ozer 1 A GREENHOUSE is a hot place with large glass windows 2 Some people think we should REDUCE the amount of energy we use 3 You need to REMOVE the salt from sea water 4 We produce STEAM 5 We need to PROVIDE food 6 One SOLUTION to the problem of CLIMATE CHANGE 7 FOSSIL FUELS are a LIMITED source of energy but solar energy is UNLIMITED. not INCREASE it. where we can GROW plants. for more and more people. when we HEAT water. to make it DRINKABLE. is to use ALTERNATIVE sources of energy.