Fractional distillation is the process in which the alkanes in petroleum can be partly separated. This is due to the petroleum having different boiling points. The process starts off with the heating of crude oil for it to vaporize. The vaporized crude oil is then fed into the bottom of the distillation tower. The resulting vapor rises through a vertical column. As the gases rises through the distillation tower, its temperature decreases. Thus, certain hydrocarbons begin to condense and run off at varying levels. Each level-specific condensed fraction contains hydrocarbon molecules that has a similar number of carbon atoms. These "cuts" of boiling point allow numerous hydrocarbons to be separated out in a single process. The cooling of the tower height allows for the separation. Subsequent to the refinement, individual fuels may undergo more refinement to remove existing contaminants or substances so as to improve the quality of the fuel through cracking.
What exactly is the question here
Answer:
a
Explanation:
because none of the other ones apply to this situation
Answer:
I think its D
Explanation:
because the mitochondria makes energy and the cell wall lets things in and out of it
A)
Telomeres are the caps at the end aspect of DNA
that defend our chromosomes, which guards the end of a chromosome from corrosion.
B)
Telomeres
only exist in eukaryotes, because it possesses the chromosomes from being tarnished
by specific molecules in the cell.
C)
The Telomeres are known as to hold a capping
function. Its principal mission in the eukaryotes is to defend the end of
the chromosome from the DNA deprivation, its repair contrivance and the fusion
with other ends. It is also inattentive in the prokaryotic cells because it has
a circular chromosomes, therefore Telomeres are needed in their state.
