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.
The answer is C.0.8 and it’s expressed as rsquared.
Answer:
A. unusual distribution of fossils in the Southern Hemisphere
Explanation:
The melting sea ice goes directly into the sea, causing sea level to increase
Answer:
making a loud or confusing noise
Explanation:
