Oceanic crust is what?

Oceanic crust is denser than continental crust. It is also younger than continental crust as continental is the older of the two crusts.

Oceanic crust is mostly made of igneous rocks (like basalt) , partially comprised of iron and magnesium.

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desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.