Which elements listed below threaten our marine ecosystem?
increase biodiversity
non-native species
oil spills
erosion

Which type of map is shown in the image

What two properties affect the density of ocean water

When geographers describe how two places are related to each other spatially, they are describing a. where the places are located in relation to one another b. what kinds of natural environments are around each place c. how each place is changing over time d. what kinds of cultures are in each place