Half life is the period of time it takes for one-half of the atoms of an original isotope to decay.
In this example we have: where n= the number of half lives.
Thus:
From this equation n=3. The answer to your question is: 3 half lives have passed which gives the meteorite an age of 4.5*3= 13.5 billion years.
Answer:
astrometry
Explanation:
astrometry is the motion and magnitude of stars
Earth has a lower average temperature than the moon. Although, some might think that the earth has a higher average temperature because the earth is hot. Yet, the moon has far more avaerage temperature than the earth because the earths atmosphere blocks the suns radiation from directly hiting it. Also, the moon doesn't have a atmosphere to keep away the suns radiation.
B Water
hope this helped!!!!
I would say the scientific method?