Q$3.[40$pts$]$ Classify the following two soils using the Unified soil classification system. Give the Q$3.[40$pts$]$ Classify the following two soils using the Unified soil classification system. Give the

group symbols and the group names.

a$)$ Soil $4$

b$)$ Soil $12$

group symbols and the group names.

a$)$ Soil $4$