Question

$\mathbb{\yellow{Define}}$
$\mathbb{\orange{Urea}}$​

Answer 1

Incisors are the teeth that you use to bite into your food. Canines - Your canines are the next teeth that develop in your mouth. You have four of them and they are your sharpest teeth, used for tearing apart food. Premolars - Premolars are used for tearing and crushing food.

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Answer 2

Urea was first produced industrially by the hydration of calcium cyanamide but the easy availability of ammonia led to the development of ammonia/carbon dioxide technology. This is a two step process where the ammonia and carbon dioxide react to form ammonium carbamate which is then dehydrated to urea.