1) It comes from under the ground. It's black and liquid. a) coal b) oil c) gas 2) A TV, a fridge and a washing machine need it to work. a) gas b) coal c) electricity 3) It comes from under the ground. It can be used in cookers. a) gas b) discovery c) scientist 4) It comes from the wind. It`s an ecological source of ener a) solar power b) wind power c) wood 5) It comes from the sun. It`s an ecological source of energy. a) laboratory b) sources of energy c) solar power 6) Scientists make them in their laboratories. a) cakes b) gas c) discoveries 7) It’s a person who works in a laboratory. a) scientist b) actor c) zoo keeper 8) It comes from trees. People burn it for heating and cooking. a) coal b) wood c) wind

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