The sea is an example of a landform created by what type of movement

The layers of earth are based on what two sets of characteristics?

The first atomic explosion was detonated in the desert north of alamogordo, new mexico, on july 16, 1945. what percentage of the strontium-90 ( yr) originally produced by that explosion still remains as of july 16, 2016?

Select the star life cycle that is accurate