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:
The right answer is A
Explanation:
Because animals take in sugar and oxygen, break them down and release carbon dioxide and water along with ATP as usable energy.
Answer:
— Florida residents know that we share the state with a large alligator population — an estimated 1.3 million to be exact! And while that can be scary, alligators are fundamental to the state's wetlands.
Explanation:
Answer: C. is your answer
