Yes it does (considered as one of the waste products)
No. But plasma does contain glucose, urea, albumin and fibrinogen.
urea
the blood plasma carries waste products, including urea.
plasma
Plasma carries waste products such as carbon dioxide, urea, and other metabolic waste products to be removed from the body by the kidneys and lungs.
no
CO2 (carbon dioxide) and urea.
Yes, perspiration does contain urea. Urea is one of the waste products excreted in sweat, along with salt and water.
in this the kidney contain less urea
A Plasma must contain many ions and electrons.
Many things contain plasma mostly things in the sky.
Plasma includes ions (charged particles), electrons, neutrons, photons, and various atomic and molecular species. It can also contain impurities, dust particles, electric and magnetic fields, and waves.