Photosynthetically Active Radiation (PAR) can be defined as the amount of light available for photosynthesis, which is light in the 400 to 700 nanometer wavelength range. PAR can be changed seasonally and varies depending on the latitude and time of day.
By Jagran Josh
Jan 24, 2013 17:11 IST
Ecosystem part 2
How energy flows in an ecosystem? What is the relation of thermodynamics with Ecosystem? How many marks carried by the chapter Ecosystem in class 12 board examinations? Why we study the chapter Ecosystem? How important the chapter Ecosystem? What is PAR? What is net productivity? What is ten percent law?