Which two geological processes have been most important in shaping the surface of the moon as we see it today?
The primary geologic processes that shaped the moon are the formation of craters, volcanic activity, and tectonic activity. Each of these will be dealt with in their respective sections below. Craters cover the surface of the moon. They are the result of high velocity impacts on the surface by meteorites.
Whats the fundamental reason that Mars has so little geological activity compared to Earth?
What's the fundamental reason that Mars, unlike the Earth, has become virtually geologically dead? Its small size compared to Earth. Small size leads to less volcanic outgassing and greater atmospheric loss.
Which numbered position represents a place where new seafloor crust is being made?
Which numbered position represents a place where new seafloor crust is being made? This is the mid-Atlantic ridge, where mantle material emerges to the ocean floor and spreads out as new seafloor crust.
Which geologic processes are most clearly evident in the Southern Highlands?
Cards
| Term Which of the following provides evidence that water once flowed on Mars? | Definition Runoff and outflow channels |
|---|---|
| Term when you zoom in on the section labeled 'southern highlands,' which geologic processes are most clearly evident? | Definition impact cratering and erosion |
•Nov 4, 2011
What is the significance of the up and down Wiggles?
What is the significance of the up and down wiggles? They show seasonal variations in the concentration.
Which of the following statement can explain the reason that Earth’s continental crust has lower density than seafloor crust?
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.
What makes us think that Mars in the past must have had an atmosphere that was warmer and had higher surface pressure?
What makes us think that Mars must once have had an atmosphere that was warmer and had higher surface pressure? The atmosphere is too cold and thin for liquid water today, yet we see evidence that water flowed on the surface in the past. Mars lost any global magnetic field that it may once have had.
Which of the following could explain why Mars today lacks a global magnetic field like that of Earth?
Terms in this set (20) Recent evidence suggests that Mars once had a global magnetic field. Assuming this is true, which of the following could explain why Mars today lacks a global magnetic field like that of Earth? Mars's interior has cooled so much its molten core layer no longer undergoes convection.
What does each band of color on the seafloor represent?
Colored maps show bands of different colors across the ocean floor and each different colored band represents the span of time in which the rocks within that band formed. The seafloor becomes progressively older on both sides of the mid-ocean ridges.
What do the stripes on the strips stand for?
The stripes on the strips stand for the magnetic stripes located on the ocean floor, which indicates the reversal of the Earth's poles.
Which of the following is the most basic definition of a greenhouse gas?
Which of the following is the most basic definition of a greenhouse gas? A gas that absorbs infrared light.
What causes the up and down Wiggles on the seismogram show below *?
What causes the up and down wiggles on the seismogram? ground vibrations.
What causes the up and down Wiggles on the seismogram show above * 1 point?
These wiggles that are seen in graph are due to some sort of vibrations that are seen beside the seismogram. The seismogram machine consists of the drum on which a particular graph paper is rolled and this drum is rolled at a particular rate. A pen is hanged which marks the line as drum rolls.
Why is the continental crust less dense?
Continental crust is less dense because of its composition. Continental crust is made up of felsic material (SiO4)– mainly granite. The density of continental crust is 2.9 g/cm^3. Oceanic crust, while thinner, is made of mafic materials (Fe, Mg)– mainly basalt.
Why does the oceanic crust sink beneath the continental crust at the subduction zone?
Because ocean crust is more dense than continental crust, it will sink beneath continents if tectonic forces push the oceanic crust into the continent.
What makes us think that Mars must once have had an atmosphere that was warmer and has higher surface pressure quizlet?
Mars lost any global magnetic field that it may once have had. What makes us think that Mars must once have had an atmosphere that was warmer and had higher surface pressure? The atmosphere is too cold and thin for liquid water today, yet we see evidence of flowing water in the past.
Who owns Mars planet?
Mars belongs to everybody, according to the Outer Space Treaty, which the United States signed back in 1967. The treaty says nobody can own a celestial body.
What do the stripes in the paper represent in seafloor spreading model?
The strips of paper represent oceanic crust or seafloor. 3. The oldest sections should be the sections on both sides furthest from the middle 4. Seafloor spreading is the creation of new seafloor or new oceanic crust 5.
What part of the earth do the paper strips represent?
oceanic crust The strips of paper represent oceanic crust or seafloor. 3. The oldest sections should be the sections on both sides furthest from the middle 4. Seafloor spreading is the creation of new seafloor or new oceanic crust 5.
What do the side slits represent?
The side slits stand for where subduction has occurred and the ocean floor has sunk in. Also, the space under the paper stands for the oceanic crust of the Earth.
What do you understand by the term greenhouse gases make a list of greenhouse gases?
greenhouse gas, any gas that has the property of absorbing infrared radiation (net heat energy) emitted from Earth's surface and reradiating it back to Earth's surface, thus contributing to the greenhouse effect. Carbon dioxide, methane, and water vapour are the most important greenhouse gases.
How do changes in the atmosphere from burning fossil fuels affect plant life Select the two correct answers?
How do changes in the atmosphere from burning fossil fuels affect plant life? Select the two correct answers. – Increased ozone levels slow plant growth. – Acid rain removes nutrients from soil.
Which of the following measurements collected from seismograph Stations Give Scientist information regarding the type of faulting that occurred during an earthquake?
Which of the following measurements collected from seismograph stations gives scientists information regarding the type of faulting that occurred during an earthquake? The first motion of the P waves.
What causes the up and down wiggles on the seismogram show above variations in air pressure ground vibrations tsunami waves electromagnetic pulses?
These wiggles that are seen in graph are due to some sort of vibrations that are seen beside the seismogram. The seismogram machine consists of the drum on which a particular graph paper is rolled and this drum is rolled at a particular rate.
What causes the up and down wiggles on the seismogram show below *?
What causes the up and down wiggles on the seismogram? ground vibrations.
What is the thickness of the crust under the mountainous areas and in particular the Himalayas?
70 to 75 km What is the thickness of the crust under the mountainous areas and in particular the Himalayas? Explanation: It is believed that the thickness of the crust under the Himalayas is 70 to 75 km and under the Hindukush it is said to be 60 km thick.
What is in the lithosphere?
The lithosphere is the solid, outer part of the Earth. The lithosphere includes the brittle upper portion of the mantle and the crust, the outermost layers of Earth's structure. It is bounded by the atmosphere above and the asthenosphere (another part of the upper mantle) below.
Why does the oceanic crust sink beneath the continental crust at the subduction zone Quizizz?
Why does oceanic crust sink beneath the continental crust at a subduction boundary? The oceanic crust has a greater density. The continental crust is made of dark-colored rocks. Gravity is stronger in the ocean due to all the water on top.
Why does oceanic crust slide below the continental crust in a convergent boundary to create ocean trenches?
Continental crust is always much more buoyant than oceanic crust, and oceanic crust will always subduct. Ocean trenches formed by this continental-oceanic boundary are asymmetrical.
What makes us think that Mars must ones have had an atmosphere that was warmer and had higher surface pressure?
What makes us think that Mars must once have had an atmosphere that was warmer and had higher surface pressure? The atmosphere is too cold and thin for liquid water today, yet we see evidence that water flowed on the surface in the past. Mars lost any global magnetic field that it may once have had.