Broad areas of folded rock layers that resemble an upside-down bowl are called?

domes

basins

horsts

monoclines

The correct answer is "domes." Domes are broad areas of folded rock layers that resemble an upside-down bowl. They are characterized by their circular or elliptical shape, where the rocks are uplifted and folded in a manner that creates a dome-like structure. Domes can often be found in mountainous regions or areas of significant geologic activity.

To find the answer to this question, one can use various resources such as textbooks, online sources, or consult with geological experts. By researching the topic of folded rock layers, one can learn about the different geological structures that can form, including domes. Understanding the terminology and characteristics of these structures can help identify the correct answer.