A. What happens when two continental plates collide?
- 1) The plate moving with lesser force subducts under the one moving with greater force.
B. What happens when volcanoes erupt?
- 1) Pyroclastic and mud flows, tsunamis, release of poisonous gases, smoke, lava and ash.
C. Are fold mountains still forming on Earth?
- 1) Yes, as long as there are plate movements, fold mountains will form from the compressional forces.
D. The surface of the earth will:
- 1) keep changing as plates keep moving
E. Where is the mantle found?
- 1) Between the crust and the core.
F. Which is the hottest part of the Earth?
- 2) The core
G. Why are settlements still found near volcanoes?
- 3) People are unaware of the dangers of living near volcanoes.
H. What is a shield volcano made of?
- 3) Ash and cinders
I. What are the effects of an earthquake measuring 7 on the Richter scale?
- 1) Wide cracks appear on the ground, damages buildings and landslides.
J. How are plates moved?
- 1) By convection currents in the Mantle
K. Where can coal only be formed?
- 1) warm and humid places
L. How do we reduce the effects of earthquakes?
- 2) Proper planning and siting of settlement, construct flexible steel structures
that sway with ground movement, install automatic shutoff systems and conduct earthquake drills.
M. What can be formed at a convergent boundary?
- 2) Shield volcano
N. What happens at divergent boundaries?
- 1) Sea floor spreads and magma rises up to fill the gap, forming oceanic ridges and submarine volcanoes.
O. What is the structure of the earth most like?
- 1) a watermelon
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