Both compounds are organic. A molecule of urea has two amine deposits, and the functional group, carbonyl, joins them. Uric acid is made from xanthine oxidase. It is toxic to the tissues. The form of uric acid utilized for fertilizer is different from urea.
The uric acid possesses a crystalline structure, and this is used in the production of specific reflectors that repel fireflies. Urea has no color, and it is soluble in water. It is also odorless and neutral. Unlike uric acid, it is not toxic to the tissues.
Urea is used in the making of fertilizer, and this is because it is an excellent source of nitrogen, which assists the growth of plants. The transportation cost of urea is also less because it is a solid fertilizer, and it is rich in nitrogen. Urea is also used in feedstock products and the auto industry.