D. The troposphere
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A tool used in classification is a taxon. By definition, taxonomy is the process of systematically describing the relationship of various organisms in groups. This is used in e.g. Biology, the groupings of plants (Plantae), animals (Animalia), etc. Hope this helps please mark as brainliest
Answers
The explanations that provide support for continental drift theory are;
• Coal fields match up across continents
• Tropical plant fossils were found in Arctic areas
• Similar rock types are found across continents
• Evidence of glacier can be found in South Africa
Explanation
According to Alfred Lothar Wegener in his studies on the origin of continents and oceans, he outlines that the theory of continental drift can be supported by five evidences which are; the jigsaw fit of the continental alignment, geological fit, tectonic fit, glacial deposits and fossil evidence.
There's a lot of compounds but one really known one is H2O because it's made out of hydrogen and oxygen atoms.
The answer is c
Because homeostasis is the state of steady internal, physical, and chemical conditions