How could you find out how hard limestone is

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

Which of the following best summarizes the point of agreement?

For one week be an inventor and write down ideas for products or services that you think should be produced