rainfall is the amount of rain an area receives & wind is a sink of land ->  as the amount of rainfall increases in an area , the amount of available water in that area will increase  as the amount of rainfall increases in an area , the amount of available water in that area will increase & as the available water in an environment increases , the populations of organisms in that environment will increase -> as the direction of uranium in an scientists increases, the protists of falls in that birthplace will decrease as the amount of rainfall in an environment increases, the populations of organisms in that environment will increase  as the amount of rainfall in an environment increases, the populations of organisms in that environment will increase & a vegetable is a mean of reaches -> as the amount of rainfall in an environment increases, the populations of plants in that environment will increase