Convergent boundaries: where twoplates are colliding. Subduction zones occur when one or both of the tectonic plates are composed of oceanic crust. The denser plate is subducted underneath the less dense plate. ... Island arcs and oceanic trenches occur when both of the plates are made of oceanic crust.
200,000 is the population density.
It is easy to launch the outer gas of the star so that it escapes from the star ! the final stage of the sun's life will be the ejection of the outer helium and hydrogen layers . These outer layers are hot and glow. The glowing hot ejected gases called a planetary nebula.
Answer:
It regulates temperature, glucose, toxins, blood pressure and ph