How did fossils show that the continents were once joined?

the same plant fossils were found on 5 different continents

What is the correct order of Earth's layers from the outside to inside?

crust-mantle-outer core-inner core

What is true of oceanic and continental crust.

continental crust is thicker & lighter

How do convection currents drive plate motion?

melted rock rises/cool rock sinks;forms current moves plates

What determines how plates interact at their boundaries?

the kind of boundary & the directions the plates move

studbud

Cycling of Rocks/Earth's Interior/Plate Tectonics

13 termsStudBud Administration197 plays

Test Review

Flashcards13 cardsFPractice quizPHost liveL

Questions 13

Answers

1
How to temperature and pressure change as you travel through the layers beneath Earth's surface
both increase as you go in
temp increases; pressure decreases
both decrease as you go in
temp decreases; pressure increases
2
Volcanoes extend so deep the reach the next layer of Earth. What is that layer?
mantle
outer core
inner core
crust
3
How did fossils show that the continents were once joined?
dinosaur bones only found on one continent
freshwater animal fossils found in oceans
there were different fossils on different continents
the same plant fossils were found on 5 different continents
4
Subduction of oceanic crust beneath continental crust forms
mid-ocean ridges
mountain ranges
plate centers
ocean trenches
5
The sinking of ocean crust back into the mantle when it meets continental crust is...
divergent boundaries
convergent
sea-floor spreading
subduction
6
If water mixes with the material in the mantle at a convergent boundary, what can form?
volcano
earthquake
folded mountain
tsunami
7
What is the correct order of Earth's layers from the outside to inside?
crust-mantle-outer core-inner core
inner core-outer core-mantle-crust
Crust-mantle-inner core-outer core
Outer core-inner core-crust-mantle
8
What is true of oceanic and continental crust.
oceanic crust is denser & lighter
continental crust is thicker & lighter
continental crust is denser & thicker
Oceanic crust is denser & thicker
9
When tectonic plates move apart, what happens next?
lava cools and hardens
Magma forms beneath the plates
lava flows to the surface
the plates go back together
10
How do convection currents drive plate motion?
ocean water rises as it warms and falls as it cools
melted rock rises & falls; mantle moves & crust stays still
crust moves in a current to drive the motion of the water
melted rock rises/cool rock sinks;forms current moves plates
11
How do metamorphic rocks form?
crusting and deposition
Melting and cooling
heat and pressure
weathering and erosion
12
What determines how plates interact at their boundaries?
the difference in thickness of the plates
The material the plate is made of
the kind of plates they are
the kind of boundary & the directions the plates move
13
What part of Earth is responsible for creating it's magnetic field
inner core
mantle
crust
outer core

Cycling of Rocks/Earth's Interior/Plate Tectonics Flashcards | StudBud