$(4$ pts$)$ Practical applications of Earth Retaining Structure include? $($list Four$)$

$(2$ pts$)$ What is the specific gravity range for soil solids for Peat?

$(4$ pts$)$ For the dry density of sand, with a density of $\mathrm{.}367$ is $2200k\frac{g}{m^3}?$ Fin ratio and specific gravity?

$(2$ pts$)$ What are two separate analyses that are required for lateral load on piles?

$(4$ pts$)$ Define and give reasons for failure of battered piles?