GS One‑Liners

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# Question & Answer
3301
What is a line that marks the boundary of a fold? - Axial Plane.
3302
Which type of fold has its axial plane nearly horizontal? - Recumbent Fold.
3303
Which type of fold has its axial plane tilted? - Inclined Fold.
3304
Where does the outer core primarily lie? - Between the Mantle and the Inner Core.
3305
What is the term for the weakening or dissipation of an atmospheric front? - Frontolysis.
3306
What are the three layers of the Earth (like an onion)? - Crust, Mantle, and Core.
3307
What is the material carried by a glacier called? - Glacial debris (or Till).
3308
What is the process where a mass of rock debris moves down the slopes under gravity? - Mass Movements.
3309
What are the three main processes of weathering? - Chemical, Physical/Mechanical, and Biological.
3310
What is the combined crust and upper-most solid mantle called? - Lithosphere.
3311
What is the lower layer of the mantle called? - Lower Mantle (Mesosphere).
3312
What is the outermost layer of the earth's atmosphere (above 1000 km)? - Exosphere.
3313
What are Normal and Reverse faults collectively called? - DIP-SLIP FAULTS.
3314
What is the measurement of how steeply the fault plane slopes called? - The dip.
3315
What is the term for the zone of complex deformation associated with the fault plane? - Fault zone.
3316
What type of faults have walls that move sideways, not up or down? - Strike-slip faults.
3317
What is the lower side of a sloping fault plane called? - The ‘footwall’.
3318
What is the upper side of a sloping fault plane called? - The ‘hanging wall’.
3319
What are the forces that create reverse faults (where the hanging wall moves up)? - Compressional forces (pushing the sides together).
3320
What are the forces that create normal faults (where the hanging wall drops down)? - Extensional forces (pulling the sides apart).
3321
Which movements constitute orogenic movements? - Folding, Faulting, and continental drift.
3322
What type of movement is Orogeny (Orogenic Forces)? - Horizontal/tangential earth movement.
3323
What are two examples of Epeirogenic processes? - Upwarping and Downwarping (other being Isostacy).
3324
What type of movement is Epeirogeny (Epirogenic Forces)? - Vertical movement.
3325
What is the type of plate boundary of the Indian plate along the Himalayan mountains? - CONTINENT-CONTINENT CONVERGENCE.