Read this excerpt from exploring the titanic.
during those years i also worked as a scientist exploring other parts of the world's oceans. in 1973 and 1974
joined expeditions that explored the mid-atlantic ridge, an enormous underwater mountain range running down
the middle of the atlantic ocean. this ridge is part of an even bigger undersea range that extends 40,000 miles
around the world. in 1977, near the galapagos islands off the coast of ecuador, we discovered enormous red
worms, some of them more than eight feet long. these giant worms live inside white tubes and cluster around
underwater hot springs.
which phrase from the excerpt best the reader understand what the mid-atlantic ridge is?
other parts of the world's oceans
part of an even bigger undersea range
enormous red worms
underwater hot springs
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I believe it's part of an even bigger undersea range

Explanation:s

part of an even bigger undersea range

Explanation:

The best way to acknowledge it´s immensity is to know that the Mid-Atlantic Ridge (MAR) is only a portion of an even larger undersea range that extends 40,000 miles around the world.

The MAR is located at the center of the basin between a set of flat abyssal plains that stretch to the margins of the continental coasts.

The Mid-Atlantic Ridge itself is 3 km height above the ocean floor and around 1000 to 1500 km wide.

the most famous of all the units fighting in cuba, the "rough riders" was the name given to the first u.s. volunteer cavalry under the leadership of theodore roosevelt. roosevelt resigned his position as assistant secretary of the navy in may 1898 to join the volunteer cavalry. the original plan for this unit called for filling it with men from the indian territory, new mexico, arizona, and oklahoma. however, once roosevelt joined the group, it quickly became the place for a mix of troops ranging from ivy league athletes to glee-club singers to texas rangers and indians.