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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