Question

Please help:
I have to study these questions and I don't want to study the wrong answer.

Answer 1

Okay, so what are the questions

Answer 2

1. What percentage of Earth’s surface is covered by water?
a. 45 percent c. 71 percent
b. 51 percent d. 85 percent


2. Which of the world’s oceans is the largest and deepest?
a. Arctic Ocean c. Indian Ocean
b. Atlantic Ocean d. Pacific Ocean


3. Which of these features is NOT found on the ocean floor?
a. mountain c. river
b. volcano d. plain


4. What does sonar equipment measure?
a. the density of the ocean’s water
b. the depth of the ocean floor
c. the sound produced by bottom-dwelling ocean creatures
d. the shape of the ocean surface


5. Scientists use satellites to measure the
a. ocean floor depth. c. sea-surface height.
b. size of underwater features. d. ocean’s salinity.


6. The continental margins of the Pacific Ocean are
a. wider than those of the Atlantic and have more earthquake activity.
b. narrower than those of the Atlantic and are not covered with thick layers of sediment.
c. wider than those of the Atlantic and have no volcanic or earthquake activity.
d. narrower than those of the Atlantic and are covered with thick layers of sediment.


7. Trenches form at sites where
a. one plate descends beneath another.
b. erosion cuts into the continental shelf.
c. two plates diverge under the sea.
d. the tops of undersea volcanoes collapse.


8. Abyssal plains are very flat features that form when
a. volcanoes spread lava on the ocean bottom.
b. turbidity currents deposit sediments on the ocean floor.
c. ocean waters flood plains on land.
d. plates diverge on the ocean floor, causing seafloor spreading.


9. Which of the following forms at mid-ocean ridges?
a. island arcs c. guyots
b. deep-sea trenches d. new ocean floor


10. What are the two major energy sources obtained from the ocean shelf?
a. oil and manganese c. natural gas and coal
b. calcium carbonate and halite d. oil and natural gas




11. Mineral-rich water, heated by newly formed oceanic crust, escapes through cracks in the ocean floor called
a. nodules c. hydrothermal vents
b. Rifts d. trenches


12.Gas hydrates are compact chemical structures made of natural gas and
a. halite. c. manganese.
b. water. d. petroleum.


13. Which ocean resources are second only to petroleum in economic value?
a. salts and gypsum c. calcium carbonate and copper
b. manganese nodules and halite d. sand and gravel


14. Manganese nodules are
a. manganese salts that concentrate when seawater evaporates.
b. lumps of manganese and other metals found on the ocean floor.
c. deposits of manganese and iron deep under the ocean floor.
d. chunks of pure manganese found in deep-sea trenches.


Completion
Complete each statement.


15. The 3 main oceans of the world are the _____________ ,_________________, and ___________.

16. The measurement of ocean depth and the mapping of the topography of the ocean floor is called _____________________.


17. The _____________________ is the gently sloping submerged surface extending from the shoreline.





18. The continental margin slopes down to the _____________________ plain on the ocean floor.

19. Occasional movements of dense, sediment-rich water down the continental slope are _____________________ currents.

20. The steep continental slope merges into the ocean floor creating a trench through this process _____________________.

21. _____________ is the food source for animals on the ocean floor.

22. The deepest known place on Earth is the _____________________ in the Pacific Ocean’s Mariana Trench.

23. The two types of biogenous sediments are _____________________ ooze and _____________________ ooze.

Continued on the next page













Choose the correct statements below first, and then put the true statements in the correct order

a. The chains of volcanic islands called seamounts are caused by hot spots in the mantle.
b. As a plate moves across a hotspot, a string of volcanic peaks will form.
c. The flat-topped guyots develop before the volcanic cones.
d. The ages of the volcanic islands increase with distance from the hot spot.
e. When seamounts and guyots occur together, it indicates that a hot spot was not the cause of the chain of islands
f. The most active volcanic islands in the chain are the farthest from the hotspot.

Answer 3

its a lot, I know, but we have a quiz or test on this tomorrow.

Answer 4

For question 1, its 71 percent of earths surface is water.

Answer 5

oh crap >.< I put 85

Answer 6

For question 2, the pacific ocean is the worlds deepest and largest.

Answer 7

And for question 3, okay well what would you not expect to see if you reached the bottom of the ocean?

Answer 8

uhh o.o a volcano, I guess
*face palm*

Answer 9

No, most volcanoes occur on the seafloor. Try again ^.^

Answer 10

mountain??? lol.
im never gonna get past biology

Answer 11

Wait.... river??
I mean, I guess, uhh, I don't know

Answer 12

Yes river is correct!

Answer 13

is the next one B

Answer 14

Wait let me check my answer

Answer 15

For the third one plain is actually correct sorry >.<

Answer 16

xD its okay

Answer 17

And yes 4 is B.

Answer 18

For number 5, satellites cannot take measurement below sea, so what two things can you eliminate?

Answer 19

a and b?

Answer 20

Yep! so you are left with C and D.

Answer 21

okay, now im stuck on 11 and 15

Answer 22

Still need help? Sorry i was eating lol.