When you drop iodine on a leaf you may observe a colour change of orange/brown to a blue/black complex.
This is because in the leaf there are starch molecules that form a blue/black complex with the starch molecules.
hope that helps :)
The separation of molecules. I wouldn't put that if i were you.
6.02214086 x 10^23 mol^-1
Watershed....water....river.....streams....oceans....contaminate....nitrogen....phosphorous....subsidence...Thats the order...please give brainliest......