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World Geography

World Geography
The longest era of the classification of the history of earth is

Pre-Cambrian era
Mesozoic era
Cainozoic era
Palaeozoic era

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World Geography
The variation in the duration of the day and the night is due to earth's

inclination of an angle of 601/2 degrees
rotation on its axis
both (a) and (b)
revolution around the sun

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World Geography
What is the proportion of insolation that is reflected back by the surface called?

Albedo
Radiation
Conduction
Scattering

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Albedo is the proportion of insolation that is reflected back by the surface. It depends upon the nature of the surface upon which the solar radiation is incident and the angle of incidence of the solar beam.

World Geography
The hydrological cycle is a conceptual model that describes

the movement of water between biosphere, atmosphere, lithosphere and hydrosphere
both (a) and (b) D.
None of these
the storage of water between biosphere, hydrosphere, atmosphere and lithosphere

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World Geography
The type of igneous rock that form from magma is a function of

temperature of solidification
the rate of cooling, which influences the crystallisation process
the chemical composition of the magma
All of these

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World Geography
The smallest country of the world is

Vatican city
Russia
Canada
Brazil

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