1) Sand and water beakers: Which curves represented the light sand, dark sand, a
ID: 236267 • Letter: 1
Question
1) Sand and water beakers: Which curves represented the light sand, dark sand, and water? (use the color of the curve in your answer) How does this relate to land masses and oceans?
Light sand:
Dark Sand:
Water:
Related to land and oceans:
0.5 0.6 Green Yellow Visible light Blue Yellow Orange Violet Gamma rays | X rays Gamma ravs I X ravs Infrared Microwaves Long radio waves 0.001 micrometer 1 micrometer 1000 micrometers 1 meter 1000 meters Short-wave radiation Long-wave radiation © 2012 Pearson Education, Inc.Explanation / Answer
Light sand : Relectance of sand is depend upon the organic content, texture, moisture content etc, For example light sand reflects Light yellow colour due to organically rich minerals, increase in moisture content the reflectance of soil would be low. And, if the particle size of soil is decrease the reflectance would be increased. Dark sand : Reflectance of dark sand in visible range would be the dark colour due to low presence of organic matter. Therefore, it could be reflect Red to violet. Water: Reflectance of water is depend upon the either water is clear/fresh or turbid or saline water. Clear water bodies reflects light colour (Light blue) in visible range and turbid water reflects dark colour (violet). Relation to land mass and ocean: the colour reflectance in visible range of land mass is depend upon the tone of soil, rocks/ terrane, vegetaion cover etc. As for example, In northern latitudes having black soil reflecting dark colour(dark violet to black) and tropical regions having red soil reflects orange to red colour. Vegetation cover reflects the shades of green colour. And, the water bodies like sea, ocean etc reflects dark blue to violet colour, depend upon the nature(fresh or turbid) of water sea or ocean. The blue (mostly) colour of water is due to phenomenon of absoption and scatering.
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