In my opinion
Mass extinctions happen because of climate change, asteroid impacts, massive volcanic eruptions or a combination of these causes. One famous mass extinction event is the one that lead to the extinction of dinosaurs, 65 million years ago.
I hope it’s help
Answer:
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I’m srry Ik I’m not helping but how do you ask questions yo the public ?
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.
A protein that is exposed to heat or drastic change in pH will have its structure affected. Conditions that are beyond the optimum conditions for the survival of proteins will affect their structures adversely, causing them to lose their unique three dimensional structures. This is in turn will leads to the denaturation of the proteins and the proteins will no longer be able to perform their original functions.
