I think you forgot to post the picture needed for the question. However, after some research I found it online. The picture should show a circle with areas for bacteria growth, area of no growth (ZOI) , and antibiotic disc A. The diameter in mm of the ZOI for disk A will be 13 mm.
Global cooling because it habitat was too cold and also there cooled blooded and so the change in temperature severely decreased their population so they died out.
Answer:D
The explanation of how different celestial bodies react with one another
due to gravity.
hope this helps
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