Three attracting forces for pioneers

Which summarizes the relationship between density of an element and its distribution in earth? a. the greater an element’s density, the greater the amount of it found in the crust. b. the denser an elements is, the smaller the amount of it earth core. c. the greater an elements density, the smaller the amount of it’s found in the crust

What makes a personal exceptionality/non-exceptionality

If a population is growing quickly in a small area then what must increase as well