Figure 3. Representation of a sand beach showing capillary action 

 of sand. 



mmmmmmm 



Hk.M 



IILM j 





PB< 



1 I OV\ 



IIP! 1 



^3 



o 



Figure 4. Representation similar to Figure 3, with oil added, showing 

 contamination of dry sand. 



24 



