Geography Y8 Revision Flashcards
What is the angle of incidence
The amount of heat energy received at any location on the globe is a direct of sun (thermal radiation is received at poles is spread out over large area aka dispersed)
Solar insulation
Measure of the solar energy that is incident on a specified area over a set period of time
Albedo effect
Light surfaces reflect more heat than dark surfaces. Ice reflects suns rays leading to colder temperatures
Food chain
A directional path of tropic energy starting with a producer and ending with an apex predator
Food web
Natural interconnection of multiple food chains
An occurrence of solid, naturally occurring material
Minerals and resources
Ozone layer
A regional of earths STRATOSPHERE that absorbs most of the suns UV rays
Katabatic winds
Fast wind that foe s225 mph and caused by gravity
Hydraulic stilts
Engineering a building to sit on hydraulic moveable legs mounted on huge skis
Snow drifts
A deposit of snow sculpted by wind into a mound during a snow storm
Aims of the Antarctic treaty
To not mine any minerals
Advantages/disadvantages of tourism in Antarctica
Advantages - allow for more jobs, like tour guides, strict rules are there like no littering and not going within five meters of wildlife. Tourists can get a first hand look at the effects of climate change
Disadvantage - green house gases will be emmited from boats and ships, oil spills could occur, the cosystem is fragile and can take years to recover from accidental damages, tourists may bring harmful pathogens and bacteria
Ghana location
West Africa bordering Togo, Burkina Faso and ivory coast
Rural Ghana characteristics
No running water or electricity, mud huts, farm animals (goats, pigs) , hot climate
Challenges of water supply in Ghana
Many water sources are contaminated with harmful pathogens which can lead to waterborne diseases like cholera, typhoid and diarrhoea
How does water aid help rural Ghana
Providing clean water, sanitation and hygiene education
Mali geographical knowledge
Mali is a landlocked country bordered by 7 countries. Sahara desert in north, Niger River flowing through central region and fertile land south
Antarctics climate
Coldest continent on earth, very dry and windy
Southern ocean ecosystem
Most productive marine ecosystems on earth. From phytoplankton to orca whales, penguins, squids and fish etc
Resources in Antarctica
Oil, natural gas, gold, silver, uranium, coal
Challenges of scientific research in Antarctic
Katabatic winds, can harm the environment
Development definition
A branch of geography which refers to standard of living and quality of life of its humans inhabitants
Causes of uneven development
The cycle of poverty, the global trading system
Globalisation
The process by which businesses or other organisation develop international influence or start operating on an international scale
Transnational corporation
An enterprise that involved with the international production of goods or services, foreign investments or income and asset management ent in more than one country
Advantages of transnational corporation
Access to world market, cheap labour cheaper production costs
Disadvantages of transnational corporations
Transnational companies can exploit employees. Employees salaries are low. They cause harm to the environment
