What advantage does using a multi-beam sonar system have over using a single beam system?

How does central place theory explain patterns in the size and distribution of cities?

Analyze the map below and answer the question that follows. image by mdf the map projection above was created using mathematical formulas to calculate distances. it has a small amount of distortion. which map projection is shown in this image? a. the goode projection b. the political projection c. the mercator projection d. the winkel tripel projectio

Hey, i was what is consisted in a sustainable city? like what unique designs they have, etc. for answering ; )