World Geography
The modern theory of plate tectonics states

the convention currents within the earth's mantle cause the creation of new oceanic crust at the mid
All of these
that the oceanic crust is destroyed at areas where this crust type becomes subducted under the light
the creation of oceanic crust and the drifting of continents

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World Geography
Which among the following statements is/are correct about the symbiotic life of Corals?Algae gives carbon dioxide and other substances the  coral polyp needs.Coral polyp gives off oxygen and other nutrients that the algae needs.Select the correct code from the options given below:

Neither 1 & 2
Only 1
Only 2
Both 1 & 2

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