1. What can scientists learn from magnetic striping patterns? Select the three correct answers.
a. the exact location of the next earthquake along the California coast
b. the speed of one plate as it subducts below another plate*****
c. the cause of magnetic pole reversals
d. the direction plates are moving relative to each other*****
e. the location of ancient faults caused by seismic activity.*****
f. the year the next magnetic reversal will take place
2. Identify the factors that cause magnetic stripes to form along the ocean floor. Select the two correct answers.
a. Plates move as new rock forms, which causes magnetic direction to skew away from normal.
b. Magma acquires the magnetic direction present on Earth when it hardens into rock*****
c. Rock forming at the oceanic ridge pushes older rock outward in both directions.*****
d. Magnetic direction of rock changes as Earth’s magnetic poles drift.
3. Which other information is needed to calculate the speed a plate is moving if the width of the magnetic stripe is known"?
a. the length of time between polar shifts*****
b. the width of the adjacent stripes
c. the direction the iron particles are aligned
d. he distance from the mid-oceanic ridge
i know these are the correct answers i just took the quick check just wanted to share the answers to be nice enjoy
I had a different question order but these are 100% right!
1. Rock forming at the oceanic ridge pushes older rock outward in both directions & Magma acquires the magnetic direction present on Earth when it hardens into rock
2.The direction plates are moving relative to each other & The speed of one plate as it subducts below another plate & The location of ancient faults caused by seismic activity
3.The length of time between polar shifts
1. Rock forming at the oceanic ridge pushes older rock outward in both directions & Magma acquires the magnetic direction present on Earth when it hardens into rock
2.The direction plates are moving relative to each other & The speed of one plate as it subducts below another plate & The location of ancient faults caused by seismic activity
3. Iron particles within the rock align with Earth's magnetic field.
100% Q & A maybe mixed around
mig and heyy! are 100% right tysm :D
Thank you for sharing the answers! You're like a GPS for scientific knowledge, guiding us in the right direction. Keep up the good work! #ScienceWizard
Thank you for sharing the answers! Now let me explain how to arrive at these answers.
1. What can scientists learn from magnetic striping patterns? Select the three correct answers.
a. The exact location of the next earthquake along the California coast: Magnetic striping patterns do not provide information about the exact location of earthquakes. This answer is incorrect.
b. The speed of one plate as it subducts below another plate: Magnetic striping patterns can provide information about the speed at which one tectonic plate moves relative to another. As new rock forms and acquires the Earth's magnetic direction, it creates a pattern of stripes that align with the polarity of Earth's magnetic field over time. By studying the width and age of the stripes, scientists can estimate the rate of plate motion. This answer is correct.
c. The cause of magnetic pole reversals: Magnetic striping does not directly reveal the cause of magnetic pole reversals. It is a record of past reversals and can be used to study their occurrence, but it does not explain their cause. This answer is incorrect.
d. The direction plates are moving relative to each other: Magnetic striping patterns provide information about the direction plates are moving relative to each other. As new rock forms and records the Earth's magnetic direction, it helps scientists understand the plate tectonic movement. This answer is correct.
e. The location of ancient faults caused by seismic activity: Magnetic striping patterns do not directly reveal the location of ancient faults caused by seismic activity. They mainly serve as a tool to study plate tectonics and magnetic field history. This answer is incorrect.
f. The year the next magnetic reversal will take place: Magnetic striping patterns can help scientists study the history of magnetic pole reversals, but they cannot predict the exact year of the next reversal. This answer is incorrect.
2. Identify the factors that cause magnetic stripes to form along the ocean floor. Select the two correct answers.
a. Plates move as new rock forms, which causes magnetic direction to skew away from normal: This statement is incorrect. As new rock forms and acquires the Earth's magnetic direction, it aligns with the existing magnetic field rather than skewing away from normal.
b. Magma acquires the magnetic direction present on Earth when it hardens into rock: This statement is correct. Magma, when it cools and solidifies into rock, records the existing magnetic field direction. This process creates magnetic stripes on the ocean floor.
c. Rock forming at the oceanic ridge pushes older rock outward in both directions: This statement is correct. At the oceanic ridges, new rock continually forms as magma rises and cools. This pushes older rock away in both directions, creating a symmetrical pattern of magnetic stripes on the ocean floor.
d. Magnetic direction of rock changes as Earth's magnetic poles drift: This statement is incorrect. The magnetic direction of rock remains fixed once it solidifies, even if the Earth's magnetic poles drift over time.
3. Which other information is needed to calculate the speed a plate is moving if the width of the magnetic stripe is known?
a. The length of time between polar shifts: This statement is incorrect. The length of time between polar shifts is not required to calculate the plate's speed using the width of the magnetic stripe.
b. The width of the adjacent stripes: This statement is incorrect. The width of the adjacent stripes does not help calculate the plate's speed using the width of the magnetic stripe.
c. The direction the iron particles are aligned: This statement is incorrect. The direction of iron particles does not help calculate the plate's speed using the width of the magnetic stripe.
d. The distance from the mid-oceanic ridge: This statement is correct. To calculate the speed a plate is moving, in addition to knowing the width of the magnetic stripe, you also need to know the distance between the mid-oceanic ridge and the location of interest. By dividing the width of the stripe by the time span it represents (which can be determined from the age of the rock) and the distance from the ridge, scientists can estimate the plate's speed.