Stars with higher mass have shorter lifespans. When the sun becomes a red giant, its atmosphere will engulf the Earth. During the red giant phase, a main sequence star's core collapses and burns helium into carbon. After about 100 million years, the helium runs out, and the star turns into a red supergiant.
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Pine trees are the most common
A branch point on a phylogenetic tree is a separation point, from where a lineage is evolved into a new different lineage. The basal taxon is the unbranched lineages which evolved from the root.
<span>They have aromatic rings.</span>
