The property to be used is sieving. you get a bowl and a sieve when you pour the sand and salt,the salt being the small particle sieve to the bowl while the sand remain on the sieve as residue
Answer:
For the control experiment:
of aqueous solution of erioglaucine has absorbance of 
From Lambert-Beer's law we know:

Here; e is the molar absorptivity coefficient of erioglaucine
l = length of cuvette in which the solution is taken = 
A sorbance by the erioglaucine = total absorbance - absorbance by distilled 
So; by putting the values in the above equation; we get:

So; 
The molar absorptivity coefficient of erioglaucine is 
The absorbance of erioglaucine in distilled water (contaminated with metal ions) is: 
The absorbance of distilled water is 
So; absorbance of erioglaucine itself is : 
Again using Lambert Beer law; we get:


c = 0.198/5.65 M = 0.035 M
The concentration of the erioglaucine is 
Explanation:
Their cells have a nucleus and membrane-bound organelles.
Answer:
1. sweep it instead
2.use a wateringcan with a percise nossole to water your plants efectivly 3.keep a jug of water in your frisge
Explanation: