Today's Rocket Words: Your 5 words and meanings to learn

pasteurisation

a process of making foods stay fresh. It involves heating the food to kill most harmful microorganisms

biogas

a gas produced by the digestion in an oxygen free (anaerobic digestion) or fermentation of organic matter

megawatt

one million watts

biosolid

solid organic matter recovered from a sewage treatment process and used especially as fertilizer

fertiliser

substances added to the soil or sprayed on the leaves of plants to keep them well nourished

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