The value of goods and services produced within a country in a year<span>
hope this helps
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Geologic maps are most recognized by their contour lines which represent different elevations. The correct option among all the options that are given in the question is the last or the fourth option. Geologic maps are important for all geologists around the world. I hope the answer comes to your help.
Answer: Igneous Rock
Explanation: Radiometric dating is used to date rocks by measuring the decay of their composite materials. Stable isotopes remain the same over time while the nucleus of an unstable or radioactive isotope will decay to form other isotopes
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Dating rocks using Isotopic methods uses the decay time of the isotope in the rock to assess its age. The accuracy of this method is assured by the fact that when these isotopes decay, they are retained in the rock. Isotopic dating is not very accurate in sedimentary rocks because they contain particles from older rocks.