Name __________________________
Period _________________
FACES OF EARTH
SHAPING THE PLANET
1) What continent is ripping itself apart?
2) The Afar depression was created by a spreading of earth's __________
over the last 30 million years.
3) Earth's outermost shell is broken into a dozen or more _____________
which ride atop Earth's mantle.
4) Geologists predict that in about 10 million years, the whole 3700 mile
length of the East African Rift will be submerged, and a new ocean will be
born. At that point, Africa will have lost it's horn, creating yet another
new profile of _____________.
5) In your lifetime, North America and Africa will be about ____________
further apart than they were when you were born.
6) It is calculated that it might have taken as long as ________________
for the Mediterranean to refill.
7) Greece is in the process of tearing itself away from ______________
and breaking apart.
8) Normal faults are a result of the crust being stretched, then
_______________ into massive pieces that release tension. One side slips
down, while the other block appears to rise up.
9) ______________ are one of the processes that can transform the face
of the earth.
10) What happened to the missing 1800 miles of India's crust?
11) Even though California experiences 10,000 _________________ every
year, most of them are not felt.
12) How many earthquakes occur each day around the globe?
13) P-waves, or Primary waves, are the fastest of all seismic waves, and are
the ___________ to arrive at a seismic station.
14) In 10 to 11 million years, Los Angeles will become a suburb of
______________________.