8. (5 pts. ) The intensity I (in lumens) of light penetrating the water of a lake is related to the amount of sediments s in the water by I(s) = s-2. If the amount of sediments dI s = eh where h (in meters) is the depth of the lake, what is the value of when h = 2 dh meters? I(S) = S - 2 (a) -2e-4 lumens /meter. (b) -e - 4 lumens/meter. dI an when nez (c) 1/4 lumens/ meter. S= eh (d) -1/4 lumens/ meter. 1(S ) = (en) - 2 (e) e- lumens/meter. all = - 2 (en ) - 4 dl = - 2/ p2) - 4