D is for drumlin
Dams: an artificial structure designed to hold back water to create a reservoir
Death rate: the number of deaths per 1,000 people in 1 year
Debt: money owed to others, to a bank or to a global organisation such as the World Bank
Debt relief: many poorer countries are in debt, having borrowed money from developed countries to support their economic development. There is strong international pressure for developed countries to clear these debts – this is debt relief
Debt repayment: paying back money borrowed to support development to banks or governments
Decade Volcano: a volcano identified as deserving particular study because of a history of destructive eruptions near to populated areas
Decomposer: organism that takes the remains of dead plants and animals, as well as their excreted wastes, and converts them back into carbon dioxide and nutrients. This releases raw nutrients in a chemical form usable to plants and algae, which incorporate the chemical into their own cells
Dependency ratio: the balance between people who are independent (work and pay tax) and those who depend on them. Ideally, the fewer dependents for each independent person, the better off, economically a country is. Formula is below:
(Number of dependent people / number of independent people) x100
Deforestation: the cutting down and removal of forest
De-industrialisation: a process of decline in certain types of manufacturing industry, which continues over a long period of time. It results in fewer people being employed in this sector and falling production
Delta: these are found at the mouth of the river and are formed by deposition
Demographic Transition Model: a theoretical model that shows changes in population information (birth and death rates and population growth) over a period of time
Deposition: the dumping (deposition) o sediment that has been transported by the river
Depression: an area of low atmospheric pressure
Desertification: In 1978 the United Nations defined this as the ‘diminution or destruction of the biological potential of the land which can lead ultimately to desert-like conditions
Destructive wave: a wave formed by a local storm that crashes down onto a beach and has a powerful backwash
Development: measure statistics used to show the level of development, which allows countries to be compared
Development gap: the difference in the level of economic development between richer and poorer countries
Devolution: the statutory granting of powers from a central government to government a sub-national level, such as a region or state. The powers devolved might be temporary and ultimately reside in central government, so that the state remains united. Devolution can be mainly financial – i.e. giving areas a budget that was formerly administered by central government. However, the power to make legislation relevant to the area might also be granted
Discharge: the volume of water passing a given point in a river at any moment in time
Dominant plant: the largest, most complex and tallest species present in a community
Donor country: a country giving aid to another country
Drainage basin: the area from which a river gets its water. The boundary is marked by an imaginary line of highland known as a watershed
Dry valley: a valley formed by a river during a wetter period in the past but now without a river
Drought: a period, usually short term, when the climate is drier than normal owing to the failure of seasonal rains, and from which the natural environment can recover quickly
Drumlins: moulds of till useful for showing the direction of ice flow
Dykes: a vertical intrusion with horizontal cooling cracks. Cools rapidly on contact with surrounding cooling rock. Contracts and cools. Cuts across bedding planes.
Death rate: the number of deaths per 1,000 people in 1 year
Debt: money owed to others, to a bank or to a global organisation such as the World Bank
Debt relief: many poorer countries are in debt, having borrowed money from developed countries to support their economic development. There is strong international pressure for developed countries to clear these debts – this is debt relief
Debt repayment: paying back money borrowed to support development to banks or governments
Decade Volcano: a volcano identified as deserving particular study because of a history of destructive eruptions near to populated areas
Decomposer: organism that takes the remains of dead plants and animals, as well as their excreted wastes, and converts them back into carbon dioxide and nutrients. This releases raw nutrients in a chemical form usable to plants and algae, which incorporate the chemical into their own cells
Dependency ratio: the balance between people who are independent (work and pay tax) and those who depend on them. Ideally, the fewer dependents for each independent person, the better off, economically a country is. Formula is below:
(Number of dependent people / number of independent people) x100
Deforestation: the cutting down and removal of forest
De-industrialisation: a process of decline in certain types of manufacturing industry, which continues over a long period of time. It results in fewer people being employed in this sector and falling production
Delta: these are found at the mouth of the river and are formed by deposition
Demographic Transition Model: a theoretical model that shows changes in population information (birth and death rates and population growth) over a period of time
Deposition: the dumping (deposition) o sediment that has been transported by the river
Depression: an area of low atmospheric pressure
Desertification: In 1978 the United Nations defined this as the ‘diminution or destruction of the biological potential of the land which can lead ultimately to desert-like conditions
Destructive wave: a wave formed by a local storm that crashes down onto a beach and has a powerful backwash
Development: measure statistics used to show the level of development, which allows countries to be compared
Development gap: the difference in the level of economic development between richer and poorer countries
Devolution: the statutory granting of powers from a central government to government a sub-national level, such as a region or state. The powers devolved might be temporary and ultimately reside in central government, so that the state remains united. Devolution can be mainly financial – i.e. giving areas a budget that was formerly administered by central government. However, the power to make legislation relevant to the area might also be granted
Discharge: the volume of water passing a given point in a river at any moment in time
Dominant plant: the largest, most complex and tallest species present in a community
Donor country: a country giving aid to another country
Drainage basin: the area from which a river gets its water. The boundary is marked by an imaginary line of highland known as a watershed
Dry valley: a valley formed by a river during a wetter period in the past but now without a river
Drought: a period, usually short term, when the climate is drier than normal owing to the failure of seasonal rains, and from which the natural environment can recover quickly
Drumlins: moulds of till useful for showing the direction of ice flow
Dykes: a vertical intrusion with horizontal cooling cracks. Cools rapidly on contact with surrounding cooling rock. Contracts and cools. Cuts across bedding planes.
Interesting Geographical fact
The Shortest place name is
‘Å’ it is located in both Sweden and Norway. In Scandinavian languages, ‘Å’
means “river”.