1) Describe the Hertzsprung-Russel diagram. How is it useful in classifying stars? Where do stars tend to cluster on the diagram? Where on the H-R diagram does a star spend most of its life?
2) Compare and contrast the atmospheres of Jovian planets and the atmospheres of terrestrial planets. Why are the components of Jovian atmospheres so different from those of terrestrial planets?
Please provide proper APA and no less than 200 words each