How might it be possible that the water we drink is from the same age
as the dinosaurs?

water is reused. The water we have on earth doesn't actually replenish but rather goes through the the water cycle. The same water that was in the Ground will end up in the clouds making it rain, or in the Ocean. Whether it is condensation, precipitation, evaporation or percolation, it is the same water going through the water cycle.

oceans

indian ocean

pacific ocean

atlantic ocean

arctic ocean

southern ocean

there are mainly three domains in biological classification namely; archaea, bacteria, and eukarya.

archaea includes all the prokaryotic cells which are characterized by their lipid membranes. they have branched hydrocarbon which is attached to glycerol through an ether linkage.

bacteria includes all the prokaryotic cells, the cell membrane of which are made up of the unbranched fatty acid chain. in addition, they are attached to glycerol through an ester bond.

eukarya includes all the eukaryotic cells, that is, the cells contain a nucleus and other membrane-bound cell organelles.

they can be autotrophic as well as heterotrophic, unicellular as well as multicellular

they include kingdoms like protista, plantae, animalia, fungi et cetera.

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explanation: