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
Which among the following is the most important character of the ‘Goldilocks Zone ‘ of the space?

It is small region of the space which is extremely cold
It is a small region which is extremely hot and presence of most elements in vapor state
It is a region of space which is neither too hot nor too cold and has conditions which are a must for life
It is a region of space which is characterized by a lot of asteroids

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World Geography
Which among the following statements is not correct about Plunge pool?

It is a deep depression in a stream bed at the base of a waterfall
They are often very deep, generally related to the height of fall and the volume of water,
They occur at the mature stage of the river development
It is created by the erosional forces of cascading water

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