What is the orientation of the magnetic stripes of iron contained in rocks that support the idea of seafloor spreading? east and west north and east south and west north and south

The answer is; north and south

When magma rises in the divergent boundary, as new crust is formed, the iron minerals in the magma align themselves with the earth’s magnetic field before the magma cools to rock. Iron minerals have a ferromagnetic property about them. This is why the rocks layers in the sea floor spreading have bands. As the earth’s magnetic field flips regularly, the iron elements also change alignment in tandem.  

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

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