The correct statements are that:
1. Topmost crust during subduction - are oceanic and continental crust.
2. Formed when magma solidifies- Continental crust is formed.
3. Made up of denser rock - Oceanic crust are basically denser rocks.
Oceanic Crust and Continental Crust.
- An Oceanic crust is a crust which is formed over the layer of Earth and generally comprises basalt as its main composition. It is younger as compared to the continental crust.
- A Continental crust is a crust which consists of rocks in its main composition and are much older than compared to the oceanic crusts. Sometimes, continental crusts are as old as the Earth.
Hence, the characteristics that match the statements are classified as a part of continental and oceanic crust as above.
Learn more about Earth's crust here:
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