How much of the energy used by TVs is used while they're on standby?, 10%, 35%, 60%, 85%, How long can a game console run for if you recycle one aluminium can?, 30 minutes, 1 hour, 2 hours, 10 hours, Biodiesel is a kind of biofuel used in diesel engines. Which of these things CAN'T it be made from?, coconuts, used cooking oil, potatoes, sunflower seeds, How much of the world's electricity does the Sun provide every 15 minutes, Enough for three years, Enough for year

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