I would say B). Hope this helps!
Given the age of the meteorite is 4.5 billion years old with 78 atoms of lead-206 the answer should be B. 156. The half-life of uranium-238 in order to decay into lead-206 is 4.46 billion years, which means that the original number of atoms is 156.
Answer:
Answer is C. Climax community is an ecological community that has reached the final stage of ecological succession.
Explanation:
At this point bio-diversity is maximum and no further changes take place. It is the most stable period.
