Free World Geography MCQs with Answers

• A. The mesosphere
• B. The ozone layer
• C. The troposphere
• D. The ionosphere

Explanation: The ozone layer, within the stratosphere, absorbs most of the Sun's harmful ultraviolet radiation.

• A. The stratosphere
• B. The mesosphere
• C. The troposphere
• D. The thermosphere

Explanation: The troposphere, the lowest layer, holds most water vapour and is where clouds and storms form.

• A. A dry area on the leeward side of a mountain range
• B. A desert formed by shifting sand dunes
• C. A desert at the poles
• D. A desert formed by cold ocean currents

Explanation: Air drops its moisture on the windward side of mountains; the descending air on the leeward side is dry.

• A. The Copenhagen Accord
• B. The Paris Agreement
• C. The Montreal Protocol
• D. The Kyoto Protocol

Explanation: Adopted in 2015, the Paris Agreement commits nations to limit warming, mainly through national emission pledges.

• A. 2°C
• B. 1°C
• C. 3°C
• D. 4°C

Explanation: The Paris Agreement targets holding warming well below 2°C, with efforts to limit it to 1.5°C.

• A. Thailand
• B. The Philippines
• C. Malaysia
• D. Indonesia

Explanation: Indonesia, on the Pacific Ring of Fire, has the most active volcanoes of any country.

• A. Ecuador
• B. Chile
• C. Argentina
• D. Peru

Explanation: Chile lies along the Pacific Ring of Fire and is highly prone to both volcanoes and earthquakes.

• A. Hawaii
• B. California
• C. Alaska
• D. Washington

Explanation: Alaska, at the northern end of the Ring of Fire, has many active volcanoes along the Aleutian arc.

• A. The South Island (Canterbury)
• B. Stewart Island
• C. The Chatham Islands
• D. The North Island (Taupo Volcanic Zone)

Explanation: New Zealand's North Island sits on the Pacific Ring of Fire, with the active Taupo Volcanic Zone.

• A. Mount Pinatubo
• B. Mount Apo
• C. Mount Mayon
• D. Taal Volcano

Explanation: Mount Pinatubo's 1991 eruption was one of the largest of the 20th century.

• A. A slow sinking of land
• B. A sudden shaking of the ground caused by the release of energy in Earth's crust
• C. A volcanic eruption
• D. A tidal wave

Explanation: Earthquakes are caused by the sudden release of built-up stress along faults in the crust.

• A. The shadow zone
• B. The focus (hypocentre)
• C. The epicentre
• D. The fault line

Explanation: The focus is the underground point where the rupture begins; the epicentre is directly above it on the surface.

• A. The aftershock zone
• B. The fault scarp
• C. The hypocentre
• D. The epicentre

Explanation: The epicentre is the surface point vertically above the earthquake's focus.

• A. A seismograph
• B. A barometer
• C. A theodolite
• D. A hygrometer

Explanation: A seismograph detects and records ground vibrations from earthquakes.

• A. A Richter reading
• B. A seismogram
• C. A tremor log
• D. A seismograph chart

Explanation: The trace drawn by a seismograph is called a seismogram.

• A. Geomorphology
• B. Volcanology
• C. Seismology
• D. Tectonics

Explanation: Seismology is the scientific study of earthquakes and the seismic waves they produce.

• A. Love waves
• B. S-waves
• C. Surface waves
• D. P-waves (primary waves)

Explanation: P-waves are compressional waves and are the first to arrive at a seismograph.

• A. S-waves (secondary waves)
• B. Rayleigh waves
• C. Tsunami waves
• D. P-waves

Explanation: S-waves, which shear the rock, arrive after the faster P-waves.

• A. P-waves
• B. Surface waves
• C. S-waves
• D. All body waves

Explanation: S-waves cannot travel through liquid, which is how scientists know the outer core is molten.

• A. P-waves
• B. S-waves
• C. Body waves
• D. Surface waves (L-waves)

Explanation: Surface waves travel along the ground and produce the large rolling motions that destroy buildings.