Question

Which concept is described in the theory proposed by Hess?

Continents do not move.
Cool rock pushes through the crust.
Trenches are sites of seafloor spreading.
Mid-ocean ridges are sites of seafloor spreading.

please choose from the answers im on a timed test lmao

Answer 1

Answer:

Correct Answers are Mid ocean ridges are sites of seafloor spreading

and Younger ocean floor is created

Harry H. 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.

Answer 2

concept is described in the theory proposed by Hess is that Mid-ocean ridges are sites of seafloor spreading.

Option 4

Explanation:

• With time there is a change in the continental structure and the ocean surface and the sea floor. there are certain regions which are present in the middle of the ocean. Below them the sea floor Spreads.

• As a result of this there is a change in the pattern of the ocean distribution around the globe. This pushes the continent and there is a change in the continental pattern also due to this theory.

To know more about the theory proposed by Hess,

What is Harry Hess known/famous for? Was it a theory or a ...

https://brainly.in/question/10107718