Question

because most of these eruptions occur deep under the water, they often go unnoticed.
the spreading rates of ridges vary. some spread quite slowly, no more than one to three centimeters per year, while others spread at rates approaching ten to twenty centimeters per year. the rate of spreading influences the topography, or physical features, of the ridge. a slowly spreading ridge has a steep, irregular topography and is relatively narrow, while a faster spreading rate produces a much wider profile and more gentle slopes.
two of the most carefully studied mid - ocean ridges are the mid - atlantic ridge and the east pacific rise. the mid - atlantic ridge runs down the center
what is the main focus of the text?
what the mid - ocean ridge system is like
why people havent studied the mid - ocean ridge system
why the mid - ocean ridge system is more important than other mountain ranges

Explanation:

The text describes aspects of mid - ocean ridges such as eruptions, spreading rates, and examples like the Mid - Atlantic Ridge and East Pacific Rise. It focuses on characteristics (what it's like) rather than reasons for lack of study or importance compared to other mountain ranges.

Answer:

what the mid - ocean ridge system is like