Earth's core is believed to be composed primarily of an iron-nickel alloy. Compare the values you got for the density of Hermatite and Magnetite (Iron) to the density of the core. Why is there such a
difference? Use the Inferred properties of Earth's Interior graph to help.

How do you date a sample of rock that you suspect as being one of the earliest on earth

Select the correct answer from each drop-down menu proteins are

The ancestors of plants that lived in water had plenty of water for the young. angiosperms are a group of land plants that evolved a reproductive trait for living on land. this trait protect young plants by allowing them to grow only when water is present and the conditions for healthy development are right. what trait most likely young angiosperms in this way?