Which of the following describes the relationship between elements of an ecosystem? A.) Elements of ecosystems are mutually dependent on each other.
B.) Abiotic elements are dependent on each other, while biotic elements are not dependent on each other.
C.) A cause and effect relationship is limited to abiotic elements only.

Jennifer is visiting her grandmother, who lives in the northeast corner of oklahoma. the region is home to many lakes, and jennifer enjoys canoeing on the illinois and grand rivers. to which region of oklahoma is she traveling? the prairie plains, the ozark plateau, the red river plains, the red beds plains

Which of the following terms describes the layers of air surrounding the earth ?

What did the pattern of earthquakes in the wadati-benioff seafloor zones show scientists? a.) earthquakes occur where the ocean floor reaches its highest temperatures. b.) many earthquakes take place 700 kilometers below the seafloor. c.) slabs of ocean floor return to the mantle in subduction zones. d.) ocean - trenches cause earthquakes.