1. The age of the seafloor along the length of boundary 1 is _____.
uniform and older than that of adjacent areas
uniform and younger than that of adjacent areas
impossible to determine
variable

2. Earthquakes associated with boundary 1 occur _____.
at shallow depths along the boundary
at shallow depths north of the boundary
over a range of depths that are deeper to the north
over a range of depths that are deeper to the south

3. Suface elevation across boundary 1 is _____.
asymmetric, higher to the north
asymmetric, higher to the south
symmetrical
uniform

4. Volcanoes associated with boundary 1 are _____.
along the boundary itself
nonexistant
off to the northern side of the boundary
off to the southern side of the boundary

5. Taken together, the geologic features associated with boundary 1 suggest it is a/an _____ boundary.
convergent
divergent
indeterminate
transform

6. The age of the seafloor along the length of boundary 2 is _____.
consistently older than that of adjacent areas
consistently younger than that of adjacent areas
impossible to determine
variable

7. Earthquakes associated with boundary 2 occur _____.
at shallow depths along the boundary
at shallow depths north of the boundary
over a range of depths that are deeper to the north
over a range of depths that are deeper to the south

8. Surface elevation differences across boundary 2 are _____.
nonexistant
uniform along the length of the boundary
variable along the boundary, highest at the ends and lowest in the center
variable along the boundary, lowest at the ends and highest in the center

9. Taken together, the geologic features associated with boundary 2 suggest it is a/an _____ boundary.
convergent
divergent
indeterminate
transform

10. The age of the seafloor along the length of boundary 3 is _____.
uniform, and older than that to the east or west
uniform, and younger than that to the east or west
impossible to determine
variable

11. Volcanoes associated with boundary 3 are _____.
along the boundary itself
nonexistant
well off to the western side of the boundary
well off to the eastern side of the boundary

12. Suface elevation across boundary 3 is _____.
asymmetric, higher to the east
asymmetric, higher to the west
symmetrical, higher in the center
symmetrical, lower in the center

13. Taken together, the geologic features associated with boundary 3 suggest it is a/an _____ boundary.
convergent
divergent
indeterminate
transform

14. The relatively high elevation of the oceanic lithosphere along boundary 3 suggests that it is _____ and _____ compared to the lithosphere beneath the surrounding ocean basin. Choose two answers.
cooler
denser
less dense
warmer