Question

Where are mid-ocean ridges found?

Answer 1

Mid-ocean Ridges can be found in all of the oceans

Explanation:

Mid-ocean ridges are underwater mountains that form a single largest mountain chain in the world.

Look at this map:
It shows the topography of ocean floor, the red-like lines are the mid-ocean ridges.

You can also see that the mountain belt extends from the Arctic Ocean, down through the middle of the Atlantic Ocean, around into the Indian Ocean, and then across the Pacific Ocean north to North America.

http://www.whoi.edu/oceanus/feature/exploring-the-global-mid-ocean-ridge