The spine is the indicator of stature
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.
I hope this finds you what you were looking for.
Answer:
<h2>Exchange</h2>
Explanation:
A transaction in which two or more organizations or people give and receive something of value is called Exchange
Hope this helps
plz mark brainliest
Have a nice day!!!!!!
Answer: the <span>Permian–Triassic extinction event ; {"end of the Permian era"} .
_____________________________________________________</span>
