A solar flux is a unit of solar radio emissions per unit frequency interval and is equal to 10-22 watt per square meter per hertz at the earth.
 The fraction of the total light which is incident on a reflecting surface especially a celestial body and is reflected back in all directions is known as albedo
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what is albedo?
Sorry I did not see that there was this ques too
Radiant flux is the measure of the amount of radiant energy per unit time. The SI unit for radiant flux is the watt called flux.

Albedo is the fraction of solar energy (shortwave radiation) reflected from the Earth back into space. It is a measure of the reflectivity of the earth's surface called Albedo. ( or )  Albedo or reflection coefficient, derived from Latin albedo "whiteness" (or reflected sunlight) in turn from albus "white," is the diffuse reflectivity or reflecting power ...
what state of assimilation efficiency and production efficiency advocates minor significance of heterotrops in an ecosystem? 6 mark question?