Question:
THE WEATHER FORECAST FOR A CERTAIN DAY WAS SEVERE FROST.A WISE FARMER WATERED HIS FIELDS THE NIGHT BEFORE TO PREVENT FROST DAMAGE TO HIS CROPS.WHY DID HE WATERED HIS FIELD
Answer:
A farmer watered his field before severe frost as when temperature of 1 g water decreases , 4.2 KJ of energy is released wich gives warmness to the crops .
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