supply - The _______ of gas in the world is large enough for 200 years., development - One of the biggest causes of global warming is economic ________, change - The governments of the world have agreed to take action to combat climate _________, shortage - People say education standards have declined because there is a _________of good teachers., demand - There isa rising ________ for cheap, sustainable energy., threat - People in developed countries are eating too much - it’s a serious ________to their health., crisis - When a country can’t pay its debts, we have a serious global _________, growth - Population _________ is continuing and there will soon be 8 billion people on the planet.,

BR pre intermediate - Unit 13

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