Answer:
C. Fe2O3 + 2Al → 2Fe + Al2O3
It is 200 million years because it has been around for a long time.
9) Richter scale
10)Seismograph
11) measurement of the amplitude of the largest wave
I do believe to are correct
Answer:
ther economic status influence how we perceive the place where we live and other parts of the world.
Explanation:
Answer:
B
Explanation:
An undifferentiated cell is such as that in a blastocyte. They are multipotent and can differentiate into any type of cells. The cells of the mass begin to have their gene differentially expressed (due to differential silencing of particular genes) hence the cell become determined. They become well organized into tissue such as skin and other organs.
