1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sleet_krkn [62]
3 years ago
15

How is the composition of rock on the seafloor different than rock on the land?

Geography
1 answer:
kvv77 [185]3 years ago
3 0

Oceanic crust is dominated by mafic and ultramafic intrusive igneous rocks whereas continental rocks are dominated by granitic (felsic) intrusive igneous rocks.

The difference in density has an impact on isostacy of crust floating on the semi-fluid upper mantle (asthenosphere), with continental crust (about 2.7g/cm3) rising or floating above oceanic crust (about 3.5 g/cm3).  

The continental crust is by far the older of the two types of crust.

The mantle, oceanic crust, and continental crust all have different compositions due to a process called partial melting.

Because continental crust is less dense than oceanic crust it floats higher on the mantle, just like a piece of Styrofoam floats higher on water than a piece of wood does.

Answer:

Explanation:

You might be interested in
Figure 1 shows a seaside cliff. Figure 2 shows the same cliff after a short period of time has passed. What caused the change fr
MAXImum [283]

Answer : B

Explanation: the change is caused by erosion that is caused by strong ocean waves bashing up against the cliff.

3 0
3 years ago
Read 2 more answers
What feature of pueblo life has divided the pueblo peoples for centuries?
NISA [10]

settlement that has houses made of stone, adobe, and wood

4 0
2 years ago
What are Singapore's natural resources??
vodomira [7]

Answer:

Singapore has very few natural resources. However, it takes full advantage of those few that they have. Deep water reserves of petroleum are mined and exported to other countries. Also, Singapore is important in electronics, as they are a key maker in computer products.

Explanation:

5 0
3 years ago
Read 2 more answers
Compared with surface currents, deep currents are a. colder and less dense. c. warmer and denser. b. warmer and less dense. d. c
Effectus [21]

The correct answer is - d. colder and denser.

The main differences between the surface currents and deeper currents are the temperature and density, and that actually decides their position in the water, on the surface, or deeper.

The surface currents are warmer, and because they are warmer the molecules are much more loose, so the density is lower, which in return makes it easier, thus it is in the surface.

The deeper currents are colder, and because they are colder the molecules are much closer and more concentrated, so the density is higher, which means that they are heavier, thus fall deeper below the easier currents.

3 0
3 years ago
Read 2 more answers
WILL MARK BRAINLIEST! <br> What are three examples of Human geography of Utah?
Basile [38]
Landform
Climate and weather
Natural hazard
8 0
3 years ago
Other questions:
  • A collision and merger of two large elliptical galaxies will eventually produce
    8·1 answer
  • Which statement accurately describes a reason for the First Crusade?
    15·2 answers
  • PLZ SOME ONE HELP ANY ANSWER
    12·2 answers
  • What is capital of poland
    10·1 answer
  • Can someone help me and explain plz?
    14·1 answer
  • Earth seems to be the only planet in our solar system that can support life. All BUT ONE of these is a reason why life is found
    5·2 answers
  • The table below shows the fossils of organisms found in various layers of an undisturbed rock:
    9·1 answer
  • About 85% of people who live in Africa live________.
    12·2 answers
  • Please answer all the questions !!!
    6·1 answer
  • Can some please help me please I will give 30 points of answer is right and marked as brainliest also no links please
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!