Answer the following question given this paragraph: 

Bathymetric maps are made from depth soundings or sonar data. They help oceanographers understand the shape of bottoms of lakes, bays, and the ocean. This information also helps boaters navigate safely.


Q: Besides depth soundings, what else are bathymetric maps made of?

 Choices:

- intensity data

- solar data

- density measures

- sonar data

A:
sonar data
