[amp_mcq option1=”Urea” option2=”Ammonia” option3=”Uric Acid” option4=”None of these” correct=”option1″]
The correct answer is: A. Urea
Urea is a nitrogenous organic compound that is widely used as a fertilizer. It is a white, odorless, crystalline solid that is soluble in water. Urea is produced by the reaction of ammonia and carbon dioxide. It is a relatively inexpensive fertilizer and is easy to apply. Urea is a good source of nitrogen for plants, and it is also a good source of carbon. Carbon is an important element for plant growth, and it helps to improve the soil structure.
Ammonia is a colorless, odorless gas that is soluble in water. Ammonia is produced by the decomposition of organic matter. It is a common fertilizer, and it is also used in the production of nitric acid. Ammonia is a good source of nitrogen for plants, but it can be toxic to plants if it is applied in high concentrations.
Uric acid is a white, crystalline solid that is soluble in water. Uric acid is produced by the breakdown of purines in the body. It is a waste product that is excreted in the urine. Uric acid can build up in the joints, and it can cause gout.
Therefore, urea is the only option that is also used as a bio fertilizer.