According to Merriam Webster Dictionary, climate is the usual weather conditions in a particular place or region.
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I know its late but the answer to your question would be C. relative dating
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its Earth's Orbit I think
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Hope this helps you
I would say that if biogenic sediments were discovered to come from meteorites, then it would indicate that there is life in outer space and that the earth is not the only place in the universe that created life so this would be something worth pursuing ie investigating where this life came from exactly