GS One‑Liners

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# Question & Answer
3101
What is the instrument used to measure humidity? - Hygrometer.
3102
What is the term for the moisture content of the air expressed as a percentage of the amount needed for saturation at that temperature? - Relative Humidity.
3103
What atmospheric conditions favor temperature inversion? - Long winter nights, clear skies, calm air, and snow cover.
3104
What is the phenomenon where temperature increases with altitude, contrary to the normal lapse rate? - Temperature Inversion.
3105
What is the term for the decrease in temperature with increasing altitude in the Troposphere? - Normal Lapse Rate (approx. 6.5°C per 1,000 meters).
3106
What is the primary factor that causes the variation in temperature across latitudes? - Insolation/Solar Radiation.
3107
What are lines joining places having equal mean annual temperature called? - Isotherms.
3108
What is the term for the gradual rise in the Earth's average surface temperature? - Global Warming.
3109
What are the main Greenhouse Gases? - Water Vapor, Carbon Dioxide, Methane, and Chlorofluorocarbons (CFCs).
3110
What is the process by which the Earth's atmosphere traps the heat radiated by the Earth's surface? - Greenhouse Effect.
3111
Which surface has the highest albedo? - Fresh Snow or Ice.
3112
What is the term for the fraction of solar radiation reflected by a surface? - Albedo.
3113
What is the term for the energy radiated from the Earth's surface back into the atmosphere? - Terrestrial Radiation.
3114
What is the amount of solar energy received by a unit area at the outer limit of the atmosphere called? - Solar Constant (approx. 1.94 cal/cm²/minute).
3115
What is the energy that travels from the Sun to the Earth called? - Insolation (Incoming Solar Radiation).
3116
What is the ultimate source of energy for the atmosphere? - Solar Radiation (Insolation).
3117
What is the primary difference between a Tropical Cyclone and a Temperate Cyclone? - Tropical cyclones form over warm oceans (no fronts), while temperate cyclones form over land or sea in mid-latitudes (involving fronts).
3118
What is the life cycle of a Temperate Cyclone described by? - The Polar Front Theory (by the Norwegian School).
3119
Where do temperate cyclones primarily form? - Along the Polar Front.
3120
What is the system of low pressure that forms in the mid-latitudes (35° to 65° N and S) due to the meeting of air masses? - Temperate Cyclone (or Extratropical Cyclone).
3121
What type of front forms when a cold front overtakes a warm front, lifting the warm air mass entirely off the ground? - Occluded Front.
3122
What type of front forms when the surface position of the front does not move? - Stationary Front.
3123
What type of front occurs when a warmer, less dense air mass replaces a retreating colder air mass? - Warm Front.
3124
What type of front occurs when a colder, denser air mass replaces a warmer air mass? - Cold Front.
3125
What are the four types of fronts? - Cold, Warm, Stationary, and Occluded.