Draw Active Earth Pressure diagram along the height of a retaining wall (of total height H = H1 + H2), if the backfill is moist to a depth H1, below the ground level and then it is submerged. The backfill is horizontal and also carries a surcharge of uniform intensity of q per unit area. Assume that the values of angle of internal friction of the soil as 1 and 2 and coefficients of Active Earth Pressures as Kal and Ka2 for the moist and submerged soils respectively. Moist unit weight and submerged unit weight of the soil are y and y' respectively. Unit weight of water is yw. Use other notations as standard