Geography Topics
Undergraduate level — Geography
Choose question count and time — session stays in your browser only.
filter_alt Topics
Earth Basics
Maps, Latitude & Longitude
Geomorphology
Climatology
Oceanography
Biogeography
Human Geography
Economic Geography
Environment Geography
Advanced Theories and Models
Physical Geography
Indian Geography
World Geography
Geography of Bihar
Climate & Environment
quiz Questions
Q91
What physical phenomenon causes the core of a tropical cyclone (eye) to experience anomalous warmth and clear, descending air streams?
Intense latent heat absorption from the ocean surface
Adiabatic compression of air sinking in the central vortex
Frictional dissipation of centrifugal momentum vectors
High stratospheric ozone destruction reactions
Explanation
The warm core of a hurricane eye is generated by adiabatic warming or compression as air sinks down the center of the low-pressure vortex to satisfy mass conservation.
Q92
Which type of wind is a warm, dry, downslope wind that develops on the leeward side of mountain ranges like the Rocky Mountains, often melting snowpack rapidly?
Mistral
Chinook
Bora
Harmattan
Explanation
Chinook winds are dry, warm downslope winds on the lee side of the Rocky Mountains, heated by adiabatic compression as they descend.
Q93
What specialized atmospheric thermal structure forms when radiation cooling occurs rapidly at the Earth's surface during a clear, calm winter night?
Subsidence inversion
Radiation inversion
Frontal inversion
Advection inversion
Explanation
A radiation inversion or surface inversion forms when the ground cools quickly by radiating longwave energy into space, cooling the air immediately above it below the temperature of upper layers.
Q94
Which solar radiation index defines the ratio of reflected shortwave radiation energy to total incident shortwave radiation energy on a surface?
Emissivity
Albedo
Absorptivity
Transmissivity
Explanation
Albedo is the measure of the reflectivity of a surface, calculated as the ratio of reflected to incident electromagnetic radiation.
Q95
What physical parameter determines the maximum capacity of air to hold water vapor at saturation, according to the Clausius-Clapeyron equation?
Barometric pressure
Air temperature
Density of the ozone layer
Coriolis force magnitude
Explanation
Air temperature determines saturation vapor pressure. The water vapor capacity of air increases exponentially with increases in temperature.
Q96
In the context of the South Asian Monsoon, what dynamic atmospheric transformation marks the sudden 'burst' of the monsoon over India in early June?
The southward migration of the Intertropical Convergence Zone into the Indian Ocean
The rapid northward displacement of the Subtropical Westerly Jet stream north of the Tibetan Plateau
The weakening of the Mascarene High-pressure engine
The absolute cooling of the dynamic Thar desert core
Explanation
The monsoon burst corresponds to the rapid northward shift of the Subtropical Westerly Jet stream from the south of the Himalayas to the north, allowing the Tropical Easterly Jet to establish.
Q97
Which standard cloud genus is classified as a high-altitude cloud entirely composed of ice crystals, exhibiting a delicate, fibrous, hair-like structural pattern?
Altocumulus
Cirrus
Stratus
Cumulus
Explanation
Cirrus clouds are high-altitude clouds (above 6,000 meters) composed entirely of ice crystals, appearing as thin, wispy strands.
Q98
What term describes the localized, destructive downburst of air that radiates outward from the base of a severe thunderstorm, spanning an area less than 4 kilometers in diameter?
Macroburst
Microburst
Derecho
Waterspout
Explanation
A microburst is a highly localized, intense downdraft or downburst of air that extends less than 4 km across, presenting severe hazards to aviation.
Q99
According to the Milankovitch cycles, which orbital parameter refers to the rhythmic change in the geometric shape of the Earth's orbit from near-circular to more elliptical over a 100,000-year timescale?
Obliquity
Eccentricity
Precession
Nutational tilt
Explanation
Eccentricity describes the variation in the circularity of Earth's orbit over an approximate 100,000-year period, modulating total solar radiation variations.
Q100
Which urban meteorological anomaly causes cities to record significantly higher temperatures than their surrounding rural hinterlands due to structural materials and anthropogenic output?
Föhn effect
Urban Heat Island effect
Greenhouse insulation loop
Anabatic thermal pocket
Explanation
The Urban Heat Island (UHI) effect occurs when concrete, asphalt, and dark roofs absorb and retain heat, keeping urban centers significantly warmer than vegetated rural fields.