After reviewing the graph you posted above, there is one radioactive isotope that has a half life that is approximate to the same as the estimated time of the origin of Earth.
The radioactive isotope is called Uranium 238. You can also write this out as U-238 or uranium/u. Any of these are acceptable for the answer.
Answer:
Explanation:
Atlanta and Dallas both have the Cfa (humid subtropical) climate type, but Atlanta is in the temperate broadleaf and mixed forest biome and Dallas, which is drier and hotter in the summer, is on the eastern edge of the temperature grasslands, savannas, and shrublands biome.
The distribution of fold mountains, as seen in figure 1, are mostly located around areas of tectonic plates surrounding various continents. For example, the Pacific plate, which runs along North America contains a long region of folded mountains along the coast.
After looking at the photograph given above, one sedimentary rock that probably metamorphosed to form rock on unit 6 is called limestone. You can also use the sedimentary rock called dolostone. Both will be acceptable answers to this question.
it gives you a certain direction, north, south,east,west, and in-between!