Half life is the time taken by a radioactive isotope to decay by half of its original mass. In this case the half life of carbon-14 is 5500 years.
The original mass is 30 g and the new mass is 3.75 g.
New mass = Original mass × (1/2)^n, where n is the number of half lives;
3.75 = 30 × (1/2)^n
1/8 = (1/2)^n
n = 3
Thus, the time taken will be; 3 × 5500 = 16500 years.
The occipital lobe is important in processing visual information. Hope this helps!
The two membranes pull apart a little and create a small pocket or sack of air. As the developing bird grows, it breathes in oxygen from the air sack and exhales carbon dioxide. Several thousand microscopic pores all over the surface of the egg allow the CO2 to escape and fresh air to get in.
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Answer:
badddd just look at NASA's 20-year time-lapse shows how Earth is changing
Explanation:
Seek GOD while he’s here to be found, pray to him while he’s close at hand. Let the wicked abandon their way of life and the evil their way of thinking. Let them come back to GOD, who is merciful, come back to our God, who is lavish with forgiveness. (Isaiah 55:6-7 MSG)
