Key Terms: The Challenge of Resource Management Flashcards

All 26 cards in this deck

What is food security?

When all people, at all times, have access to enough safe, nutritious and affordable food to maintain a healthy and active life.

True or false? An area with a water deficit has more water available than it needs.

False. A deficit means demand is greater than supply; a surplus is where supply is greater than demand.

What are 'food miles'?

The distance food travels from where it is produced to where it is consumed.

What is a carbon footprint?

A measurement of the greenhouse gases (mainly carbon dioxide) produced by a person, product or activity.

What is agribusiness?

Large-scale, capital-intensive, industrialised farming run as a business to maximise output and profit.

What is famine?

A widespread, severe shortage of food, often leading to undernutrition, starvation and death.

True or false? Undernutrition and malnutrition mean the same thing.

False. Undernutrition is not eating enough food/calories; malnutrition is a diet lacking the right balance of nutrients.

What is organic farming?

Farming without artificial fertilisers, pesticides or additives, using natural methods instead.

What is permaculture?

Food production that follows natural ecosystems and cycles, e.g. crop rotation, natural pest control and harvesting rainwater.

What is urban farming?

Growing food or rearing animals within towns and cities, e.g. on rooftops, allotments or in community gardens.

What is hydroponics?

Growing plants in nutrient-rich water instead of soil.

True or false? In aeroponics, plant roots sit in nutrient-rich water.

False. In aeroponics roots hang in air and are sprayed with a nutrient mist; it is hydroponics that uses nutrient-rich water.

What is irrigation?

The artificial watering of land so that crops can be grown.

What is appropriate technology?

Technology that suits the needs, skills, knowledge and wealth of local people and their environment, e.g. a simple sand dam.

What is over-abstraction?

Taking water from rivers, lakes or aquifers faster than it is replaced by rainfall.

What is groundwater?

Water stored underground in the pores and cracks of permeable rock (an aquifer).

What is 'grey' water?

Waste water from sinks, showers and washing machines that can be reused, e.g. for irrigation or flushing toilets.

What is a water transfer?

Moving water by pipes or canals from an area of water surplus to an area of water deficit.

What is desalination?

The removal of salt from seawater to produce fresh water for drinking or irrigation.

What is a country's 'energy mix'?

The range and proportion of the different energy sources a country uses.

What are fossil fuels?

Coal, oil and natural gas — non-renewable fuels formed from the remains of dead organisms over millions of years.

True or false? Nuclear power is a renewable source of energy.

False. It is non-renewable, because the uranium it uses is a finite resource.

What is renewable energy?

Energy from sources that will not run out and can be used again and again, e.g. wind, solar, hydro, tidal, wave, geothermal and biomass.

What is energy conservation?

Reducing energy consumption by using less energy and using it more efficiently, e.g. insulating homes.

What is sustainable resource management?

Using resources to meet the needs of the present without compromising the ability of future generations to meet their own needs.

True or false? An area with a surplus of a resource has more of it than it needs, which gives that area resource security.

True. A surplus means supply exceeds demand, so the resource is secure; a deficit means demand exceeds supply, causing insecurity.