resource management Flashcards
(29 cards)
what are the 3 resources everyone needs
- water
- food
- energy
what does malnourished mean?
- when people dont get enough nutirents this can then lead to deficiencys which can prohibit development
what does undernourished mean?
- when people don’t get enough food of any kind
what happens due to a lack of sanitation?
- water sources get polluted by raw sewage
impacts of waterbourne diseases?
- diseases such as cholera and typhoid kill many people a year
why is water needed?
- water is needed to produce food, clothes and other product so it impacts ppls lifestyles
whats energy needed for?
- indusrty and transport & use homes
- allows countires to develop indusrty, creating jobs and wealth
how does HICs & LICs energy supply differ?
- HICs depend on a large, stable supply of elec
- LICs liitle/no electricity = use other resources to make fuel e.g burning wood = deforestation & kerosene stoves can release harmful fumes
what may countries do increase amount of respurces?
- import
- technical solutions e.g desalination plants to produce fresh water from saltwater [EXPENSIVE]
explain consumption of resources in HICs:
- greater consumption = can afford to buy more resources = higher standard of living
explain consumption of resources in LICs:
-consumptio is lower in LICs = cant afford to eitehr exploit avialbale resources or import lacking resources
explain consumption of resources in NEEs:
- consumption is increasing
- industry is developing quickly [requires lots of energy]
- inc population & wealth = rapid
what factors have lead to a higher demand for food?
- demand for seansonal products all year
- organic produce = ppl concerned abt chemicals, and health
-as ppls incomes inc = demand for exotic fruits, coffee increased
[lots of this is imported]
how does the high demand for food affects the carbon footprint?
- carbon footprint is increasing
- growing, processing, packaging releases CO2
- transporting foods = food miles = CO2
- the amount of CO2 produced from growing to transporitng = carbon footprint
how does importing foods affects carbon footpring
- imporitng foods means more food miles so more CO2 released
= inc global warming
3 reasons why farming has becoming more industrilized:
- farm sized have increased = produce food cheaper
- amount of chemicals used in food procuction increased = pestcides, ferilisers used
- worlers employed in agriculture fell to just over 1.1% due to inc of machinary e.g harvesting
explain the demand of water in the UK:
- North & West = high rainfall = have a water surplus [greater suply than demand
-South & East = high population densities = higher demand = water deficit [demand greater than supply]
evidence for demand for water in the UK is increasing:
- since 1975 amount of water in UK homes increased by 70%
- population increase = prediscted by 2040 increase by 6 million
what are problems with water pollution/quality?
- crop fertilises washed into rivers & groundwater
- pollutants from vehicals washed into water sources
- chemical & oil spills can pollute water courses
= EUTROPHICATION
why is it important that groundwater is clean?
how has pollition affected UK’s ground water?
- 80% of water in parts of south englands comes ground water
- poluution affects water quality of 50% of groundwater in UK
give 2 stragies to manage water quality
- improve driangae systems
- impose regulations of amount & type of fertilisers/pesticides used
what does water transfer do?
transfer water from areas w a surplus to areas w a decicit
issues with water transfer?
- dams needed are expensive to build
- can affect wildlife in rivers e.g fish migraition distrupted by dams & may reduce biodiversity
- political issues = ppl may not want their water transfered to other areas
how has the UKs energy mix changed?
- **1970 **energy relied on fossil fuels = 90% came from coal & oil
- **1980 **discovered gas reserves = 22% of UK’s energy came from gas
- recently = increase in renewable sources 2014 19% of energy = renenwable
