Answer:
Four
Explanation:
Like all proteins, the "blueprint" for hemoglobin exists in DNA.
This zone cannot sustain life
Hiking is kinetic energy.
<span>The mantle is more dense, so it can not B.
Not even A , because the crust sure does contain naturally occurring radioactive material. Heat is also not efficiently transferred to the surface--most ground is cool,
so correct option is none is above that is D
hope it helps</span>
