1. The safest thing for you to do if an earthquake begins while you are in a building is
a call home
b. duck near a wall
c. get under the strongest table, chair or other piece of furniture
d. lie flat on the floor and cover your head with your hands
2. Why is it important to be aware of places prone to earthquakes?
a to identify what crop must be stored
b. to identify what relief goods to be prepared
c. to locate where to the next quake will occur
d. to perform necessary precautions
3. A land mass that projects well above its surroundings is a mountain. What do you call a chain of
mountains?
a mountain arc
c. mountain range
b. mountain chain
d. mountainous
4. What landform is produced during a convergence between two oceanic crusts?
a. mountain
c. volcanic island are
b. valley
d. mountain range
5. When a plate is denser, it subducts toward the mantle and forms magma. This process ends up in the
formation of
a mountain range
c. volcanoes
b. trenches
d. faults
6. Hot materials move
in a convection current.
a. any direction
c. upward
b. sideward
d downward
7. Where is the source of heat in a mantle convection current?
a. the sun
c. the core
b the crust
d. the moon
8. The plastic-like upper portion of the mantle is called
a. the magma
c. the lithosphere
b. the core
d. the asthenosphere
9. He discovered and proposed that the origin of the plate would be at the mid-oceanic ridge
a. Alfred Wegener
c. Charles Darwin
d. Albert Einstein
b. Harry Hess
10. The idea proposed by Alfred Wegener to explain the continental shapes and positions is known as
c. Plate tectonics
a. Pangaea
d. Sea floor spreading
b. Continental drift
11. Harry Hess also published his theory in History of Ocean Basins (1962), and it came to be called
a. Pangaea
c. Plate tectonics
b. Continental drift
d. Sea floor spreading
12. It is known to have been a type of reptile, similar to the modern crocodile, which propelled itself
through water with its long hind legs and limber tail.
a. Cynognathus
c. Mesosaurus
b. Lystrosaurus
d. Glossopteris
13. Its fossil is found in Australia, Antarctica, India, South Africa, and South America-all the southern
continents.
a. Cynognathus
c. Mesosaurus
b. Lystrosaurus
d. Glossopteris
14. The Seafloor Spreading Theory states that...
a. all continents are drifting
b. ages of rocks near a ridge is older than the ones far from it.
c. fossils of plants and animals are found in almost all continents.
d. hot and less dense material from below the earth's crust rises towards the surface at the mid-
oceanic ridge
15. What strong evidence discovered by our scientist that earth's magnetic reversal had been happening
in the past?
a. the ages
of the rocks in the ocean floor are constantly changing.
b. The magnetic field of the earth becomes weaker.
c. The earth's magnetic field is fluctuating.
d. The magnetic reversal occurrence is supported by magnetic patterns in magnetic rocks
found in the ocean floor.
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Answer:
1. letter c.
2. letter b.
3. letter c.
4. volcanic island
5. letter d
6. letter b or d po
7. letter c.
yan lang po sorry talaga
Explanation:
Answer:
1.C
2.D
3.C
4.A
5.C
6.D?
7.C
8.D
9.A
10.DSea floor spreading?
11.D
12.C.Mesosaurus
13.D
14.A?
15.?
Di Po sure