A measure of the amount of light given off by a star is its absolute luminosity or magnitude. Absolute magnitude<span> is the measure of </span>intrinsic brightness<span> of a celestial object. It is the hypothetical </span>apparent magnitude<span> of an object at a standard </span>distance<span> of exactly 10 </span>parsecs<span> (32.6 </span>light years<span>) from the </span>observer<span>, assuming no </span>astronomical extinction<span> of starlight. </span>
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Controls all major aspects of the economy
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Answer is A environment and society
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<em>The investigation of surface landforms, procedures and scene advancement of the Earth. </em>
<em>1. Interdisciplinary Study: </em>traverse with logical orders of <em>sedimentology, soil science, topography, climatology, hydrology, glaciology, structural designing and volcanology. </em>
Geomorphology is the investigation of landforms and scenes on Earth and different planets, and the procedures that shape them.
This order is essentially worried about<em> the disintegration and testimony of shake and silt by wind and water,</em> yet in addition incorporates the production of geography through tectonics.