Answer:
If there would be no biosphere on earth the atmosphere would be quite different. There would be no oxygen to support because oxygen is liberated by plants in photosynthesis so no plants means no oxygen. The earth would be a planet without life just like Venus and Mars. Therefore, no organism would be surviving in the world.
There would be no negligible green house effect and global warming since it is all created due to activities of men.The earth's atmosphere would be much cleaner and with lesser amount of CO2 and O2 but no organism would be there to use them.
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The function of evolution of organisms is to aid in the increased chance for life to thrive and survive. Earthquakes, volcanic eruptions and climate change are also natural occurrences and selective factors that force species to evolve and adapt to their environment. They contribute to organisms’ adaptability through cellular and organismic adaptation because these organisms want to survive.
B. mass
stars support their weight by making more energy which means more luminosity.