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:
new york
Explanation:
because it is more interesting and smaller than california
Answer:
United States of America
Explanation:
Give brainliest please press the crown on my question
Igneous rock is formed when magma hardens