Consider the following different soils.

Soil A is medium$-$grey silty clay till, comprised of $50\%$ clay with the remainder silt, sand and fine gravel

wL$=0\mathrm{.}71$ wP$=0\mathrm{.}25$ wn $=0\mathrm{.}21$

Soil B is very dark in colour and contains $30\%$ clay with silt and fine sand. wL$=0\mathrm{.}38$ wP$=0\mathrm{.}27$ wn$=0\mathrm{.}37$

Soil C is light grey, $45\%$ clay and the remainder non$-$plastic silt and fine sand. wL$=1\mathrm{.}22$ wP$=0\mathrm{.}21$ wn $=0\mathrm{.}54$

a$)$ Based on the information provided, can you classify each soil? b$)$ Comment on the likely

mineralogy of the clay. c$)$ Consider each soil at its natural water content insitu and briefly describe

what you would expect in terms of its consistency $$ i$.$e hard and brittle, soft, yielding, a mushy

slurry etc...