Your friend is scuba diving in Iceland at a mid-oceanic ridge and picks up a rock. He wants to know how old the rock is compared to the rock in Maryland. Explain to your friend which rock is the oldest and how you came to this conclusion. Use evidence from your notes.

The rock on the Maryland are older than the rocks in the mid oceanic ridge at Iceland.

Mid- Oceanic Ridge:

These are the mountains formed where tectonic plates are joined. There are many volcano present here.

The rocks present there are formed by the molten lava continuously coming out from the volcano.

Thus the rocks in the oceanic mid ridge are newly formed igneous rocks.

The rocks present in the Maryland are the sedimentary rocks that formed way older than the igneous rocks.

Therefore, the rock on the Maryland are older than the rocks in the mid oceanic ridge at Iceland.

To know more about Mid- Oceanic Ridge:

link

A rock is older in Maryland because the mid-Atlantic ridge goes through Iceland, leaving newer rocks there.

the answer would be 3