It would be sonar i think
For this fill in the blank, there are 3 answers:
The availability and cost of housing, education and health care is a major component of a region's overall cost of living.
Happy Studying! ^=^
How do scientists explain the fact that some land-forms that are far apart and separated by oceans appear to be related?
A. Earthquakes
B. Continental Drift
C. Volcanic Eruptions
D. Erosion
Spontaneous changes produce more order in a system.
