Give uses of Carbon and its compounds.

(N/A) Carbon dioxide $(CO_{2})$ can be obtained as a solid in the form of dry ice by allowing liquefied $CO_{2}$ to expand rapidly.
$CO_{2}$ is neither combustible nor a supporter of combustion; therefore,it is used as a fire extinguisher.
Dry ice is used as a refrigerant for ice cream and frozen food. $CO_{2}$ is used in the manufacturing of washing soda (Solvay's Process).
Dry ice is used in the treatment of local burns and in hospitals for the surgical operation of sores.
$CO_{2}$ is used as carbogen $(95\% \ O_{2} + 5\% \ CO_{2})$ in artificial respiration to treat the poisonous effect of $CO$ in patients.
$CO_{2}$ is used for the purification of cane sugar juice in the manufacturing of sugar.
The $(H_{2}CO_{3} / HCO_{3}^{-})$ buffer system helps to maintain the $pH$ of blood between $7.26$ and $7.42$.
$A$ substantial amount of $CO_{2}$ is used to manufacture urea.
$CO_{2}$ is essential for photosynthesis in green plants.