Birth Rate - The ratio of live births in an area to the population of that area, Death Rate - The ratio of deaths in an area to the population of that area, Population Growth Rate - A measure of population change, MEDC (More Economically developed Country) - A country in which people are relatively wealthy. Per capita income is relatively high. Birth and death rates are low. They are usually industrialised., LEDC (Less Economically developed Country) - A country in which people are relatively poor. Per capita income is relatively low. Birth and death rates are high. They are not usually industrialised., Total Fertility Rate - The average number of children each woman has over her lifetime, Sustainable - Capable of being carried on forever, Sustainable development - Development which meets present needs without compromising the ability of future generations to achieve their needs and aspirations, Land degradation - The decrease in the capacity of the land to produce food caused by human activity and natural processes e.g. soil erosion, Biodiversity - The number and variety of species within a region, Pollution - Undesirable change in the physical, Ecological footprint - The amount of the Earth’s resources of an area that a person or group consumes to support their lifestyle, Intensification - The use of many inputs (fertiliser, Pesticides - Chemicals designed to kill organisms that feed on or cause disease in crops, Controlled environment - An environment in which factors that affect crop growth e.g. light, Selective breeding - The selection by humans of individuals to breed together, Genetically modified organism - An organism that has had its genetic material altered in a way hat does not occur naturally by mating, Monoculture - One crop planted over a large area, Soil degradation - The breakdown and loss of fertility of soil., Salinisation - The build-up of salts in soil that is toxic to plant roots, Erosion - The loss of soil as it is washed and blown away, Artificial fertilisers - Nitrates, Food miles - The distance food travels through the complete production process until it reaches the consumer, Eutrophication - The artificial enrichment of water with too many inorganic nutrients such as nitrates and phosphates,

Env Sci Unit 1 key words

ni Walang pangalan
Naka-embed

Leaderboard

Flip tile ay isang bukas na template. Hindi ito bumubuo ng mga marka para sa isang leaderboard.

Estilo ng visual

Mga pagpipilian

Magpalit ng template

Ibalik ng awtomatikong pag-save: ?