Question

the mid - ocean ridge
youve probably heard of the himalayas, the andes, the appalachian mountains, and the rocky mountains. after all, theyre impressive mountain ranges. but you might not have heard of the mid - ocean ridge system—despite the fact that it forms the most extensive chain of mountains on earth.
so, why isnt a mountain range this big more familiar? perhaps because more than ninety percent of the mountain range lies in the deep ocean. the massive mid - ocean ridge system wraps around the globe like seams on a baseball, stretching an impressive 65,000 kilometers. the majority of the
order the key details to create a summary of the text.
mid - ocean ridges spread at different rates, leading to different physical features.
mid - ocean ridges occur at divergent plate boundaries, where there is major volcanic activity.
the mid - ocean ridge system is earths biggest mountain chain, although the vast majority is underwater.
the mid - ocean ridge system remains mysterious, since only a tiny fraction has been explored.

Explanation:

The text first introduces well - known mountain ranges and then contrasts them with the mid - ocean ridge system, highlighting its vastness. The key details should be ordered to first state that the mid - ocean ridge system is Earth's biggest mountain chain (though mostly underwater) as it sets the stage. Then mention its location (at divergent plate boundaries with volcanic activity) which gives more context about its formation. After that, talk about the different spread rates and physical features as a result of its geological nature. Finally, note its mysteriousness due to limited exploration.

Answer:

1. The mid - ocean ridge system is Earth's biggest mountain chain, although the vast majority is underwater.
2. Mid - ocean ridges occur at divergent plate boundaries, where there is major volcanic activity.
3. Mid - ocean ridges spread at different rates, leading to different physical features.
4. The mid - ocean ridge system remains mysterious, since only a tiny fraction has been explored.