Diatoms are made of which is used for industrial processes.

Don’t mind the already marked answer but taking it now

Which source would best a historian understand the effect of the great chicago fire on families? a. a biography of a chicago family displaced by the fire b. a letter from a grandmother in new york to her family in chicago c. a newspaper editorial about families who were displaced d. an oral history dictated by an adolescent who fled the fire

Which number shows the location of italy?