What is a depth curve?

What is a depth curve?

• A. Line connecting points of equal water depth.
• B. Line that shows water depth at a single location.
• C. Line indicating the coastline.
• D. Line representing wind-driven surface currents.

Answer: (A)

Depth curves are lines on a map that connect all points having the same water depth. They map the shape of the sea floor, showing features like shelves, ridges, and trenches. The spacing of these lines tells you how steep the slope is: lines close together indicate a rapid change in depth, while lines spaced apart indicate a gentler slope. This concept is about mapping depth across an area, not about a single depth reading at one location, the coastline, or wind-driven surface currents.

Depth curves are lines on a map that connect all points having the same water depth. They map the shape of the sea floor, showing features like shelves, ridges, and trenches. The spacing of these lines tells you how steep the slope is: lines close together indicate a rapid change in depth, while lines spaced apart indicate a gentler slope. This concept is about mapping depth across an area, not about a single depth reading at one location, the coastline, or wind-driven surface currents.