URN meaning in Space Science ?

Answer: What is Urine mean?

Urine is a liquid by-product of metabolism in humans and in many other animals. Urine flows from the kidneys through the ureters to the urinary bladder. Urination results in urine being excreted from the body through the urethra.

Cellular metabolism generates many by-products that are rich in nitrogen and must be cleared from the bloodstream, such as urea, uric acid, and creatinine. These by-products are expelled from the body during urination, which is the primary method for excreting water-soluble chemicals from the body. A urinalysis can detect nitrogenous wastes of the mammalian body.

Urine plays an important role in the earth's nitrogen cycle. In balanced ecosystems, urine fertilizes the soil and thus helps plants to grow. Therefore, urine can be used as a fertilizer. Some animals use it to mark their territories. Historically, aged or fermented urine (known as lant) was also used for gunpowder production, household cleaning, tanning of leather and dyeing of textiles.

Human urine and feces are collectively referred to as human waste or human excreta, and are managed via sanitation systems. Livestock urine and feces also require proper management if the livestock population density is high.

reference

Full Form	Category
Undergraduate Research Network	Academic & Science
Undergraduate Research Network's	Academic & Science
Unique Reference Number	Accounts and Finance
Urgoon	Airport Code
Union Resources Network	Business
Ultimate Read News	Community
University Radio Nottingham	Community
User Registration Number	Computing
User Requirements Notation	Computing
Update Relationship Name	Database Management
Uniform Resource NameURL	General
Universal Resource Name	General
U Are Next	General
Unique Record Number	General
United Ruler Negative	General
Update Request Number	General
Uniform Resource Namespace	General
Underwater Radiated Noise	General
Uniforme Ressource Names	General
Uniform Resource Names	General
Unit Reference Number	Governmental
Unplanned Random Night	Governmental
UTRAN	Indian Railway Station
Uniform Resource Name	Information Technology
Universal Resource Number	Medical
Union Railways North	Regional
Urine	Space Science