Imagine that you have been given to colorless solutions describe how you could find out which of the contains the greatest concentration of reducing sugar

you will need to think carefully about all the different variables that you would need to keep constant

Match the correct terms to their descriptions a system in which only energy but not matter is exchanged frozen water in snow part of geosphere that includes only soil a thin layer between the troposphere and the stratosphere cryosphere tropopause closed system pedosphere