1) Which is not a defining characteristic of a complex crater? A smooth curved f
ID: 115184 • Letter: 1
Question
1) Which is not a defining characteristic of a complex crater?
A smooth curved floor
A central peak
Terraced side walls
Diameter of 10s of km
2) Which is not evidence that a large impact killed off the dinosaurs?
a) An abundance of Iridium found at the K-P boundary
Fossilized dinosaurs with severe burns
Shocked quartz found at the K-P boundary
The Chicxulub Crater is the right size and age
A) Increased water content as the subducting slab releases water into the overlying plate.
B) Increased pressure as the subducting slab hits the overlying plate.
C) Decreased temperature due to water in the subducting slab.
D) The subducting slab creates a hot spot.
4) The Mid-Atlantic Ridge is best described as:
a line of undersea mountains caused by two plates colliding and pushing each other upward.
a fold in the middle of a plate caused by compressing forces on both sides of the plate.
a region where one plate is being subducted beneath another.
a boundary where two plates are moving apart, allowing molten subsurface rock to rise upward.
E) a region in the middle of a plate that happens to lie over a hot spot in the mantle.
5)The Widmanstatten patterns found in some meteorites show that the material:
A) cooled very slowly.
cooled very rapidly.
was never heated to the point of being molten.
was molten just before it entered Earth's atmosphere.
E) is composed primarily of organic compounds.
6) Why do asteroid impacts creae such large craters?
Because they compress the ground surface when they hit it, forming a depression.
Because stopping an object that is moving as fast as an asteroid causes it to explode like a bomb.
Because meteors are so hot when they hit the surface that they explode like a bomb.
D) None of the above.
7) Which is not evidence that a large impact killed off the dinosaurs?
An abundance of Iridium found at the K-P boundary
Fossilized dinosaurs with severe burns
Shocked quartz found at the K-P boundary
d) The Chicxulub Crater is the right size and age
a.A smooth curved floor
b.A central peak
c.Terraced side walls
d.Diameter of 10s of km
Explanation / Answer
1] Option a is correct
Complex-crater morphology on rocky planetsappears to follow a regular sequence with increasing size: small complex craters with a central topographic peak are called central peak craters.
Complex craters have uplifted centers, and they have typically broad flat shallow crater floors, and terraced walls.
Crater size (ranges from micrometeoroids less than 1 mm across to large asteroids and comets tens to hundreds of kilometres in diameter)
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.