Q: What triangular feature is formed when a river empties into a large body of still water? Choices: - flow - confluence - region - delta A:
delta

Q: What describes the amount of solute in a solution? Choices: - viscosity - solubility - frequency - tonicity A:
tonicity

Q: What do convergent plate boundaries with trenches have? Choices: - geysers - caves - earthquakes - volcanoes A:
volcanoes

Q: Acceleration is a vector, and thus has a both a magnitude and what else? Choices: - temperature - pressure - wavelength - direction A:
direction