When no living members of a species exist, the species

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water

The “ecological footprint” left by a citizen of a developed nation is about four times larger than that left by a citizen of a developing nation. why is this the case?

Which of the following happened during the precambrian era? the first prokaryotic cells the first eukaryotic cells development of photosynthesis all of the above