If you want to understand Earth's temperature 1 billion years ago, what options do you have for proxies that go back that far?

the correct answer is c   with the systems

identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.v

d. groundwater flows through the subsoil and deposits minerals.