<span>The star is a ball of hot gases
containing different kinds of elements at different cores. It has a very high
temperature that radiates all throughout the galaxy. The star has four
main parts; the core, photosphere, chromospheres and corona. The outer core of
a star located at the chromospheres contains mostly of hydrogen. Inside the hydrogen
is helium then carbon, oxygen, neon, magnesium silicon and the inert gas. When a
star releases energy it is due to the thermonuclear fusion of hydrogen into
helium. So the answer is fusion.</span>
Answer:
Morphology and phylogenetics revealed by fossils. Perhaps the strongest evidence to support the Cambrian evolutionary explosion of animal forms is the first clear appearance, in the Early Cambrian, of skeletal fossils representing members of many marine bilaterian animal phyla
Answer:
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Explanation:
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