occurs on a trench when an older plate sinks back into the mantle? *
transform boundary
convergent boundary
divergent boundary
convection current
subduction

What are two ways that harvesting algae from the ocean may benefit human society? how might the harvest of algae negatively impact the ocean communities where that algae grows? how could this be prevented?

Which of the follow describes a disadvantage secondary sources have compared to primary sources?

Which of the following does not make up ground substance of connective tissue? hyaluronic acid elastic fibers glycosaminoglycan proteoglycan