Select a claim and then write a report to Dr. Lewis explaining why you support that claim. Claim 1: The sediment that formed the Great Plains came from the rock of the Rocky Mountains.
Claim 2: The magma that formed the Rocky Mountains came from the rock of the Great Plains.
Choose the claim that is best supported by evidence, explaining why the rock of the Rocky Mountains and Great Plains have surprisingly similar mineral compositions.
And please be detailed

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).

I'm sorry i cant you if you don't list the elements : (

If this is a true or galse then its true but if not then what is the question?

1. why does the same side of the moon always face earthc.the rotational period of the moon is equal to one revolution around earth2. which is greater the moons period of rotation or its period of revolution  b.the moons revolution period around earth3.what was the major accomplishment of the apollo missions  d.landing on and exploring the moon4. which of these space missions involved the deployment of lunar rovers d.apollo5. which scientists are going to explore next on kepler-186fd. evidence of existence of life6.which mission is not going to explore the outside of the solar systemb.safir7.which technology limit the future of space exploration b. scientist must first develop certain technologies before missions can be completed.