▁meas uring ▁the ▁total ▁area ▁percentage ▁covered ▁by ▁a ▁certain ▁l ichen ▁species ▁the ▁age ▁of ▁expos ure ▁can ▁be ▁infer red . ▁ ▁References ▁ ▁Category : In crement al ▁d ating ▁Category : L ichen ology <0x0A> </s> ▁V andy ▁can ▁refer ▁to : ▁ ▁People : ▁ ▁V andy ▁Ham pton , ▁a ▁former ▁member ▁of ▁the ▁Chi - L ites ▁R & B / s oul ▁vocal ▁quart et ▁ ▁V andy ▁Ka onn ▁( born ▁ 1 9 4 2 ), ▁Camb od ian ▁history ▁and ▁literature ▁anal yst ▁and ▁author ▁ ▁K he k ▁V andy ▁( K he k ▁being ▁the ▁surname ), ▁Camb od ian ▁politician ▁elected ▁the ▁National ▁Assembly ▁of ▁Camb odia ▁in ▁ 2 0 0 3 ▁ ▁V andy ▁R att ana ▁( born ▁ 1 9 8 0 ) ▁Camb od ian ▁photograph er ▁and ▁artist ▁▁ ▁Peter ▁V andy , ▁ 2 0 th - 2 1 st ▁century ▁politician ▁in ▁Sierra ▁Le one ▁ ▁Van essa ▁V andy ▁( born ▁ 1 9 8 9 ), ▁New ▁Zealand - born ▁Finn ish ▁retired ▁pole ▁va ul ter ▁ ▁Benjamin ▁H . ▁V ander vo ort ▁( 1 9 1 7 - 1 9 9 0 ), ▁US ▁Army ▁officer ▁in ▁World ▁War ▁II ▁ ▁Mach iel ▁van ▁den ▁He u vel ▁( 1 9 0 0 - 1 9 4 6 ), ▁Dutch ▁World ▁War ▁II ▁prisoner ▁of ▁war ▁known ▁as ▁" V andy " ▁by ▁his ▁British ▁fellow