Which activity is most likely a result of a sudden, unexpected change in the environment? a. polar bears growing thicker fur b. fewer plankton making oxygen c. frogs hibernating d. leaves changing color

1) what three conditions must be present for minerals to form through natural processes? 2) why are minerals considered inorganic substances? 3) how do oxides differ from other minerals that contain oxygen atoms? 4) how is a sulfide different from a sulfate? what makes native elements unique?

If animal agriculture was eliminated, how much grain would become available for human consumption?

Ascientist is examinin the cell is disrupted when she damages one specific type of macromolecule g the function of macromolecules in a cell she notices that movenent of large molecules into and out of