What is pollution? A) the introduction of harmful substances into the environment

B) the removal of waste from landfills and other waste collection areas

C) the addition of organic materials in order to clean dirty air and water

D) the combination of specific chemicals to decompose garbage

97 points what types of changes have been made in the united states to protect people from earthquakes? a. communities are no longer located along fault lines. b. building codes ensure that structures can withstand shaking. c. warnings go off when an earthquake is expected, and people evacuate the area. d. barriers have been built to prevent flooding by a tsunami.

Oppression against people who make less money is called

According to the belmont report, the moral requirement that there be fair outcomes in the selection of research subjects, expresses the principle of: a. beneficence.b. respect for persons.c. justice.