How Does It Explain The Differences Between Seafloor And Continental Crust??
The lighter rock becomes the continental plates while the relatively unprocessed rocks are the seafloor plates. … -Continents – Formed by crustal material that has been recycled forming less dense rocks. -Islands – Formed by undersea volcanoes erupting over many years.
How does explain the differences between seafloor and continental crust?
How does this action explain the differences between seafloor crust and continental crust? The movements involved in plate tectonics acted like a giant conveyor belt for earths lithosphere. Mid ocean ridges occur where mantle material rises upward creating new seafloor crust and pushing plates apart.
How does seafloor crust differ from continental crust quizlet?
How does seafloor crust differ from continental crust? Seafloor crust is thinner younger and higher in density.
Why is continental crust lower in density than seafloor crust quizlet?
Why is continental crust lower in density than seafloor crust? Continental crust is made from remelted seafloor crust and therefore only the lower-density material rises to form it. How fast do plates move on Earth? one plate slides under another returning older crust to the mantle.
Why isn’t liquid water stable on Mars today why do we nonetheless think water flowed on Mars in the distant past briefly explain?
Why isn’t liquid water stable on Mars today and why do we nonetheless think it flowed on Mars in the distant past? … Mars must once have had very different surface conditions– conditions such as warmer temperatures and greater air pressure that would have allowed water to flow and rain to fall.
In what ways is Earth different from the other terrestrial planets?
In what ways is Earth different from the other terrestrial planets? It has oxygen in its atmosphere. Life can be found almost everywhere. Most of its surface is covered with liquid water.
How does scientists determine the different lithospheric plates?
The lithosphere is divided into a dozen major and several minor plates (Figure below). The plates’ edges can be drawn by connecting the dots that mark earthquakes’ epicenters. A single plate can be made of all oceanic lithosphere or all continental lithosphere but nearly all plates are made of a combination of both.
How do the Jovian planet interiors differ?
How do the jovian planet interiors differ? All have cores of about the same mass but differ in the amount of surrounding hydrogen and helium. … Accretion took longer further from the Sun so the more distant planets formed their cores later and captured less gas from the solar nebula than the closer jovian planets.
What is the differentiation in planetary geology?
Planetary differentiation is the separation of different constituents of planetary materials resulting in the formation of distinct compositional layers. Denser material tends to sink into the center and less dense material rises toward the surface.
What is the main factor that makes Earth more geologically active than the other terrestrial planets?
Why is the Earth geologically active? Earth is Geologically active because it still has heat within the core. What is particularly unique about the Earth’s atmosphere? It protects the surface against solar radiation makes our planet warm enough for liquid water to exist and it is very thin.
Which two factors are most important to the existence of plate tectonics on Earth which two factors are most important to the existence of plate tectonics on Earth?
What two factors are most important to the existence of plate tectonics on Earth? mantle convection and a thin lithosphere. Mantle convection helps move the plates and the plates probably exist because the lithosphere was thin enough to break into these plates.
What can we conclude when we see a region of a planet that is not as heavily cratered as other regions?
How deep is an impact crater compared to its width? … the surface in the region is younger than the surface in more heavily cratered regions. When we see a region of a planet that is not as heavily cratered as other regions we conclude that. has high internal temperatures.
Why can’t astronomers study the surface of Venus with visible light telescopes?
Why can’t astronomers study the surface of Venus with visible light telescopes? Venus’ thick atmosphere prevents us from seeing the surface.
How big is Earth vs Jupiter?
With a radius of 43 440.7 miles (69 911 kilometers) Jupiter is 11 times wider than Earth. If Earth were the size of a nickel Jupiter would be about as big as a basketball. From an average distance of 484 million miles (778 million kilometers) Jupiter is 5.2 astronomical units away from the Sun.
Why is Mars red?
Well a lot of rocks on Mars are full of iron and when they’re exposed to the great outdoors they ‘oxidize’ and turn reddish – the same way an old bike left out in the yard gets all rusty. When rusty dust from those rocks gets kicked up in the atmosphere it makes the martian sky look pink.
Why there is no ice on Mars?
What are the main differences of the Earth’s atmosphere when compared to other terrestrial planets in our solar system Mercury Venus and Mars )?
Explanation: The main difference between the Earth’s atmosphere and the one of other planets (such as Venus and Mars) is that about 21% of it is composed by oxygen. Oxygen is a key element to sustain any complex life form on the planet.
What makes Earth unique and different compared to any other planets in our solar system?
In the solar system the Earth is the third planet from the sun and it is the only planet known to have life. … The ability of the Earth to harbor life makes the Earth a unique planet in the solar system and this stems from the fact that water in liquid form exists on the planet.
How is planet Earth similar and different from Venus and Mars?
What is the difference between plate tectonics and tectonic plates?
Tectonic plates are pieces of Earth’s crust and uppermost mantle together referred to as the lithosphere. … Whereas Plate tectonics is a scientific theory describing the large-scale motion of seven large plates and the movements of a larger number of smaller plates of the Earth’s lithosphere.
Which differences in properties of Earth’s crust and mantle are most responsible for tectonic activity?
What are the properties of the Earth’s crust and mantle that are most responsible for Earth’s tectonic activity? They are in different states and have different temperatures. The diagram shows the motion of tectonic plates. Which term provides the most accurate classification of the geologic structure shown?
What is the difference between the lithosphere and the asthenosphere?
The lithosphere (litho:rock sphere:layer) is the strong upper 100 km of the Earth. The lithosphere is the tectonic plate we talk about in plate tectonics. The asthenosphere (a:without stheno:strength) is the weak and easily deformed layer of the Earth that acts as a “lubricant” for the tectonic plates to slide over.
Why do asteroids and comets differ in composition?
Asteroids are made up of metals and rocky material while comets are made up of ice dust and rocky material. … Asteroids formed much closer to the Sun where it was too warm for ices to remain solid. Comets formed farther from the Sun where ices would not melt.
How does Jupiter’s core compare to Earth’s quizlet?
How does Jupiter’s core compare to Earth’s? It is about the same size but is 10 times more massive. … Jupiter’s greater mass compresses it more thus increasing its density.
Why do Uranus and Neptune have blue methane clouds but Jupiter and Saturn do not group of answer choices?
Why do Uranus and Neptune have blue methane clouds but Jupiter and Saturn do not? Methane does not condense into ice in the warmer atmospheric temperatures of Jupiter and Saturn. … Different layers represent clouds made of gases that condense at different temperatures.
Why is continental crust lower in density than seafloor crust group of answer choices?
Why is Earth’s continental crust lower in density than seafloor crust? Continental crust is made as the lowest-density seafloor crust melts and erupts to the surface near subduction zones. … Seafloor crust is younger than continental crust so it has had less time in which to suffer impacts.
How do you differentiate planets?
What Do Planets Look Like? The easiest way to pick out planets is to remember this quick rule of thumb: stars twinkle and planets don’t. Seen with the naked eye planets and stars both appear as pinpoints of light. When you observe a star you’ll notice that it twinkles and the light may appear to change colors.
How did Earth become differentiated?
What causes geological activity in some of the planets and moons in our solar system?
Tectonic activity is caused by heat loss all the terrestrial planets passed through a molten (or nearly molten) stage early in their development and they have been cooling ever since. As they have cooled they have formed a strong outer layer — the lithosphere.
What causes the differences in orbits when the planet is small in mass compared to the Star vs when its mass is similar to that of the star?
What causes the differences in orbits when the planet is small in mass compared to the star vs when its mass is similar to that of the star? … So a more massive object will move less than a less massive object when experiencing the same force but if the two masses are comparable we expect them to move the same.
Why is Earth still geologically active?
Why is Earth geologically active? Internal heat drives geological activity and Earth retains plenty of internal heat because of its relatively large size for a terrestrial world. This heat causes mantle convection and keeps Earth’s lithosphere thin ensuring active surface geology.
How does plate tectonics relate to different geologic processes on Earth?
What if Earth has no tectonic plates?
If the continents were eroded completely into the oceans there would be no continents and no land left. … Without plate tectonics that push the continents up the erosion would result in the continents disappearing under the surface of the oceans.
What are the different hypotheses that explain the motion of tectonic plates?
The hypothesis of convection currents suggests that flow in the mantle is induced by currents which drag and move the lithospheric plates above the asthenosphere. … The hypothesis of magma injection postulates that the injection of magma at a spreading centre pushes plates apart and thereby causes plate movement.
Difference b/w Continental & Oceanic Crust
Continental and Oceanic Crust the differences
OCEAN CRUST VS CONTINENTAL CRUST
Oceanic vs. Continental Crust