15) Once you get past the continental slope and the rise, the floor of the open

Question

15)

Once you get past the continental slope and the rise, the floor of the open ocean is relatively flat, except for former islands known as guyots, occasional volcanic islands, mid-ocean ridges, and deep ocean trenches. This flat expanse of ocean floor is known as the abyssal plain. Scroll around the North Atlantic (all of the Atlantic Ocean north of the equator). Note that in the Atlantic there are two abyssal plains separated by a wide mid-ocean ridge.

What is the approximate water depth range of most of the Atlantic abyssal plain?

a)500-700 meters, b)2,000 to 3,000 meters, c)4,000 to 5,500 meters, d)5,000-7,000 meters

16)In the North Atlantic, a mid-ocean ridge runs north to south along the approximate center of the ocean basin. What plate boundaries are found here? Check all that apply.

a)Convergent plate boundary

b)Divergent plate boundary

c)

Transform plate boundary

d)subduction zone

Explanation / Answer

Answer 15. Answer d: 5000 - 7000 mts (Abyssal plains are foun d at water depths greater than 6500 mts)

Answer 16. Answer b: Divergent plate boundary

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.