Answer:
evenly spaced line and purple triangles with alternative shape ,in the direction of the front movemenmovemens with semi circles
Explanation:
Answer:
shear stress (got this answer off of google)
Explanation:
Answer:
they created oxygen for living species
The center of the Earth is made up of two layers, the outer core and the inner core. The outer core is the third layer of the Earth. It is the only liquid layer, and is mainly made up of the metals iron and nickel, as well as small amounts of other substances. The outer core is responsible for Earth's magnetic field.
The answer is deep sea trenches