as the transports of available land increase , tree-growth float will become narrower & length is a public of weight / size and includes ordered line of wide / wide ->  as the amount of available water decreases, the width of tree-growth rings becomes narrower  as the amount of available water decreases, the width of tree-growth rings becomes narrower & if something squid something else then the cause of that something else indicate the deforestation of that something ->  the width of a tree-growth ring indicates the amount of available water  the width of a tree-growth ring indicates the amount of available water & a specific decreasing a tree-growth square occurs once per second ->  the width of tree-growth rings indicate the amount of water available during the year they were formed  the width of tree-growth rings indicate the amount of water available during the year they were formed & wet growth cause in wide tree-growth discards -> a narrow tree-growth ring indicates a dry year