Answer:Correct Answers are Mid ocean ridges are sites of seafloor spreading and Younger ocean floor is created
<em>Explanation : Hess was a geophysicist. In 1960, he proposed a theory which is later became known as 'Sea Floor Spreading'. Hess discovered that the oceans were shallower in the middle. According to Hess, From Earth's mantle molten material is continuously flowing along the crests of the mid-ocean ridges . As soon as temperature of magma decreases, it is pushed away from the flanks of the ridges. Due to this process a younger ocean floor is created.Hess also proposed that due to light weight of continental crust, it didn't sink back into the deep earth at trenches as did the oceanic crust.</em>
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Answer: i believe its chemical change or thermal depends on the question answers
Explanation:
...domains are aligned which creates a magnetic field.
... are not always aligned so the resulting element had no apparent magentism
It is the distance between one peak to the next in the wave. Calculated as wavelength(meters) = 300/frequency(MHz)
Answer: After acceleration the iron nuclei travel at a steady speed of one-tenth of the speed of light .the speed of light is 3.00 x 10^8. calculate ...
Explanation: