John Coltrane
For the Richter scale, each increase on the scale represents ten times the amount of ground motion recorded on the seismogram. How much more motion is there for a magnitude 6 earthquake than a magnitude 4 earthquake?
a) 3 times
b) 200 times
c ) 1000 times
d) 100 times
100 times!
6 - 4 = 2
10 x 10 = 100
Which of the following existed during the Mesozoic Era?
a. mammals
b. reptiles
c. dinosaurs
d. all of the above
ALL OF THE ABOVE
If a species can adapt to a changing environment, or __________, its descendants will survive.
evolve
Active volcanoes are most likely to form at ______________.
convergent oceanic-continental boundaries
Plates slide past one another at ______________.
transform boundaries.
As altitude increases which of the following occurs?
a. Air pressure decreases.
b. Air pressure increases.c. Air pressure remains the same.
d. Air pressure behaves unpredictably because the two are unrelated.
Air pressure decreases
The boundary between two plates moving together is called a ______________________.
convergent boundary
The amount of time it takes for one-half of the original amount of an isotope to decay is known as its_____________.
half life
Using carbon-14 is one way to measure the age of teh remains of organisms. Which correctly describes the one limitation in using this particular type of dating?
The half-life of carbon-14 is only 5,730 years making it difficult to measure very old organisms.
A _______forms where two oceanic plates collide.
subduction zone
The most destructive seismic wave are ____________.
surface waves
Which movement of two blocks of rock along a fault causes an earthquake to occur?
a. sliding horizontally past each other
b. moving toward each other
c. pulling away from each other
d. any of the above
ANY OF THE ABOVE!
Plates move apart at ___________ boundaries.
divergent
Rock layers are correlated if they both contain the same________.
fossils
How was Pangaea formed?
Tectonic plates moved in such a fashion that the continents all came together into a supercontinent.
The plants in a particular are are resistant to a disease carried by a certain insect. Someone finds these plants, and thinking they are beautiful takes several to another part of the world to replant for landscaping. Some insects are carried along with the plant. In the new area, the insects flourish and spread to the native plants. The native plants start to die. What natural concept that was keeping those plants SAFE was altered by the transportation of the insects?
geographic isolation
Why do scientists hypothesize that either volcanic explosions or a meteorite impact led to the Permian mass extinction?
Both would eject ash and rock into the atmosphere, reducing temperatures.
When the force on rocks is great enough, they break, producing vibrations called _____________.
earthquakes!
There was a clump of snow on the sidewalk. Elana stomped on it and felt it flatten. This type of stress is called____________.
compression
Which of the following explain(s) the existence of the rock cycle?
a)plate tectonics
b) uplift
c) subsidence
d) all of these
ALL OF THESE