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Geography exam revision december 2024
Ocean Currents
Large-scale flows of seawater that move continuously through the world's oceans.
Surface Currents
Currents driven by wind patterns that affect the upper layers of the ocean.
Deep-water Currents
Currents caused by differences in temperature and salinity, moving water on a global scale.
Plastic Garbage Patch
A large area of the ocean where plastic debris has accumulated due to ocean currents.
Great Pacific Garbage Patch
The most well-known garbage patch located between Hawaii and California.
Gyres
Areas where ocean currents converge and trap debris, leading to large areas of plastic accumulation.
Microplastics
Small plastic pieces that result from the breakdown of larger plastic debris and harm marine life.
Non-biodegradable
Materials that do not break down naturally in the environment, leading to long-term pollution.
Renewable Energies
Energy sources that are naturally replenished and do not run out or get depleted over time.
Solar Energy
Energy harnessed from the sun using solar panels.
Wind Energy
Energy generated by wind turbines.
Hydroelectric Energy
Power generated by the flow of water, typically from dams.
Geothermal Energy
Heat energy sourced from beneath the Earth's surface.
Biomass
Energy from organic materials like plant and animal waste.
Fossil Fuels
Energy sources like coal, oil, and natural gas that cannot be replenished within a human lifetime.
Energy Density
The amount of energy produced from a small volume of fuel.
Nuclear Energy
Energy produced by splitting the nuclei of atoms, typically used for electricity generation.
Environmental Impact (Fossil Fuels)
Burning fossil fuels releases harmful pollutants contributing to air pollution and climate change.
Depletion
The process of using finite resources like fossil fuels at rates leading to their eventual exhaustion.
Nuclear Waste
Radioactive byproducts from nuclear energy that remain hazardous for thousands of years.
Geopolitical Issues (Energy)
Political conflicts and energy insecurity arising from uneven distribution of oil and gas resources.
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