The Earth's Crust
Geography · 50 practice questions
Internal and external structure of the earth and relationships among the four spheres; rocks (types, characteristics, formation, uses); earth movement (tectonic forces); major landforms (mountains, plateau, plains, coastal landforms, karst topography, desert landforms).
- Compare the internal and external components of the earth.
- Understand the relationship among the atmosphere, biosphere and hydrosphere.
- Differentiate major rock types and analyse their formation processes and uses.
- Differentiate tensional and compressional forces and identify/describe the resultant major landforms.
Try a few questions
- Practice question 1
A mountain is a landform characterized by a significant elevation above the surrounding land, often with
- A.a perfectly flat, level surface throughout
- B.elevation lower than all surrounding land
- C.no defined peak or summit of any kind
- D.steep slopes and a distinct peak
Show the answer
D. steep slopes and a distinct peak
Mountains are specifically distinguished by their notable elevation, steep slopes, and a distinct peak.
- Practice question 2
A fault is a fracture within the earth's crust along which
- A.only volcanic eruption occurs, with no mechanical movement
- B.blocks of rock have moved relative to one another
- C.only chemical weathering occurs, with no mechanical movement
- D.no movement of any kind has ever occurred
Show the answer
B. blocks of rock have moved relative to one another
Faults are specifically defined by this relative movement of rock blocks along a crustal fracture.
- Practice question 3
Igneous rock forms from
- A.the transformation of existing rock through heat and pressure alone
- B.the cooling and solidification of molten magma or lava
- C.the compaction and cementation of accumulated sediment
- D.a process entirely unrelated to molten rock material
Show the answer
B. the cooling and solidification of molten magma or lava
Igneous rock is specifically defined by this formation process: the cooling and solidifying of molten magma or lava.
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