World Geography
The term 'flora' in the context of natural vegetation refers to

a large tract covered by trees and shrubs and its administration for assessing economic benefits
role played by species of animals in the maintenance of ecological balance
assemblage of plant species living in association with each other in a given environmental frame
plants of a particular region or period, listed by species and considered as a group

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World Geography
The modern theory of plate tectonics states

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

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