Which describes ocean rocks that are found near mid-ocean ridges?(1 point)
Responses
They are older and form through the cementation of sediments.
They are older and form through the cementation of sediments.
They are younger and form through the cementation of sediments.
They are younger and form through the cementation of sediments.
They are younger and form through the cooling of magma.
They are younger and form through the cooling of magma.
They are older and form through the cooling of magma.
They are younger and form through the cooling of magma.
The correct response is: They are younger and form through the cooling of magma.
The correct answer is: They are younger and form through the cooling of magma.
To understand why this option is correct, we need to know some basic information about mid-ocean ridges. Mid-ocean ridges are underwater mountain ranges, where tectonic plates are moving away from each other. This movement causes magma (molten rock) to rise from the Earth's mantle and form new oceanic crust.
The rocks found near mid-ocean ridges are known as basalt. Basalt is an igneous rock that forms when magma cools and solidifies. As the magma rises to the surface, it cools rapidly, resulting in the quick formation of rocks. Therefore, the rocks near mid-ocean ridges are younger in age compared to rocks found farther away.
The other options mentioned the cementation of sediments, but this process is not associated with the formation of rocks near mid-ocean ridges. Cementation occurs when loose sediments, such as sand or clay, become compacted and hardened over time. This process is more commonly associated with the formation of sedimentary rocks, rather than the igneous rocks found near mid-ocean ridges.
Thus, the correct description for ocean rocks found near mid-ocean ridges is that they are younger and form through the cooling of magma.