How did clare patterson conclude the oceans were being contaminated by leaded gasoline?

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

The irish and germans of the 1840's were part of the new immigration. true or false

Read this scenario applying to the bill of rights. which of tristan's constitutional rights was violated? a. freedom of religion b. freedom of assembly c. protection against unlawful accusations d. protection against unwarranted search and seizure