Answer:
Extractive metallurgy
Explanation:
Extractive metallurgy is the practice of removing valuable metals from an ore and refining the extracted raw metals into a purer form.
Answer:
it depends upon a his body which antigen is present
Explanation:
it depends on that person not on their parents
Answer:
Shutterstock
Explanation:
when the molten outer core cools and become solid ,a very long time in future,the earth's magnetic field will disappear
