Geography MCQs

Air masses acquire characteristics from their source regions.
Their movement strongly influences weather.

A seismograph detects and records ground motion.
The resulting trace is called a seismogram.

Weather describes current or near-term atmospheric conditions.
It includes temperature, wind, humidity, and precipitation.

Fronts separate air masses with different temperatures or humidity.
Weather changes commonly occur along them.

Primary waves are compressional and travel through solids and liquids.
They arrive first at seismic stations.

Climate is based on long-term averages and variability.
It describes typical conditions over many years.

Air tends to rise in low-pressure systems.
Rising air cools and encourages cloud and precipitation.

Secondary waves involve shear motion.
Liquids cannot support shear, so S waves do not pass through them.

A thermometer records temperature.
Meteorological stations use standardized instruments and exposure.

Air generally descends in high-pressure systems.
Descending air warms and suppresses cloud formation.

Igneous rocks crystallize from molten material.
Granite and basalt are common examples.

A hygrometer measures moisture in the air.
Relative humidity compares actual moisture with the maximum possible at that temperature.