Question

Which is the best evidence supporting the concept of the ocean spreading?

(1)Earthquakes Occur at greater depths beneath continents than beneath oceans
(2)Sandstones and limestones vam be found in both North america and Europe
(3)Volcanoes appear at random within the oceans crust
(4)Igneous rocks along the mid-oceanicridges are younger than those farther from the ridges

Answer 1

The best evidence supporting the concept of the ocean spreading is "Igneous rocks along the mid-oceanic ridges are younger than those farther from the ridges."

Answer 2

# Evidence for Ocean Spreading

The concept of ocean spreading is supported by multiple lines of evidence, including:

1. Earthquakes: Earthquakes occur at greater depths beneath continents than beneath oceans. This is due to the fact that oceanic crust is thinner and denser than continental crust, allowing seismic waves to travel more quickly through it.

2. Shared Rock Layers: Sandstones and limestones can be found in both North America and Europe, indicating that these regions were once connected and have since separated due to movement of tectonic plates.

3. Volcanoes: Volcanoes appear at random within the ocean’s crust, indicating that magma is being produced and rising to the surface along mid-oceanic ridges.

4. Igneous Rocks: Igneous rocks along mid-oceanic ridges are younger than those farther from the ridges. This supports the idea that new crust is constantly being formed at the ridges and then moving away as the plates spread.

Out of these four pieces of evidence, the age of igneous rocks along mid-oceanic ridges is likely the strongest evidence supporting the concept of ocean spreading.