Coal is made from the remains of dead plants. it is made of carbon and other elements. is coal a mineral?

a yes, because it is formed naturally.
b yes, because it contains carbon.
c no, because it is created artificially.
d no, because it is an organic substance.

is this a question? wassup

the nitrogen cycle provides nitrogen to the ecosystem from the atmosphere, ground and oceans. nitrogen is an important component of complex molecules such as amino acids and nucleotides, which lead to the creation of proteins and dna, the building blocks of all life. plants absorb nitrogen in the form of ammonium, nitrate ion and, on rare occasions, as amino acids. animals receive nitrogen necessary for biological processes from feeding on living or dead organic matter.