Population & Settlement
This policy, implemented in China from 1980 to 2016, aimed to curb population growth by limiting most families to a single child.
What is the One Child Policy?
These superheated flows of ash and pumice can reach temperatures of 700°C and move faster than 500 km/h, causing immense destruction.
What are pyroclastic flows?
This device measures relative humidity using a pair of thermometers, one of which is wrapped in a wet cloth to simulate evaporation.
What is a wet and dry bulb thermometer?
The design and development of new technologies, often requiring advanced expertise, is classified under this employment sector.
What is the quaternary sector?
This process occurs when waves hit cliffs, trapping air in cracks and causing erosion over time.
What is hydraulic action?
This type of settlement forms where houses are spread out over a large area, often due to extreme climates or agricultural land division.
What is a dispersed settlement?
This type of plate boundary occurs when two tectonic plates move away from each other, resulting in the creation of new oceanic crust.
What is a constructive (divergent) boundary?
This process occurs when moist air rises over a mountain range, cools, and loses its moisture as rain, leaving dry air to descend on the leeward side.
What is the rain shadow effect?
Rising ocean acidity due to CO2 absorption contributes to this phenomenon, which damages marine ecosystems like coral reefs.
What is coral bleaching?
These salt-tolerant forests grow in tropical coastal areas and protect coral reefs from sedimentation.
What are mangroves?
This traffic-reducing measure involves charging drivers a fee to enter busy areas, often used to limit congestion in city centers.
What is a congestion charge?
This scale measures earthquake strength logarithmically, where each level is ten times more powerful than the previous one.
This process, driven by overgrazing, deforestation, and climate change, transforms habitable land into barren desert.
What is desertification?
This process describes the spread of ideas, innovations, and cultural traits across the globe, accelerated by the internet.
What is diffusion?
When waves strike the shore at an angle, this process moves sand and pebbles along the coast.
What is longshore drift?
The relationship between the economically active population and dependents (both young and elderly) that affects government spending on healthcare and education.
What is the dependency ratio?
This term describes areas where magma rises through isolated plumes, creating volcanic activity far from plate boundaries, such as the Hawaiian Islands.
What are hot spots?
These towering clouds often shaped like anvils form at low altitudes but can extend high into the atmosphere, bringing thunderstorms and heavy rain.
What are cumulonimbus clouds?
This agreement type lowers barriers like tariffs and quotas, promoting easier and more profitable international trade.
What is a Free Trade Agreement?
This soft engineering method involves adding sand to a beach to counteract erosion but requires frequent renewal.
What is beach nourishment?
This economic benefit occurs when migrants send money back to their country of origin, often supporting family members and boosting local economies.
What are remittances?
This type of plate boundary involves two plates sliding past each other, generating significant earthquakes but no volcanic activity.
What is a conservative boundary?
This type of rainfall occurs when the ground is intensely heated, causing air to rise, cool rapidly, and form dense rain clouds.
What is convectional rainfall?
where economic growth in one area leads to further growth through reinvestment and new businesses.
What is cumulative causation?
his coastal feature forms when a spit connects the mainland to an island, creating a unique land bridge.
What is a tombolo?