01
Front
How is arithmetic density calculated?
Back
Arithmetic density is total population divided by total land area: . It gives the average population per unit of land.
Free Online Flashcard Deck
2 Population Density and Its Measures Free Online FlashCards
Study 2 Population Density and Its Measures with 12 free online flashcards. Review key terms, definitions, and concepts with this interactive flashcard deck.
12 cards
02
Front
How is physiological density calculated?
Back
Physiological density is total population divided by arable land area: arable land areatotal population.
03
Front
How is agricultural density calculated?
Back
Agricultural density is the number of farmers divided by arable land area: arable land areanumber of farmers.
04
Front
What does arable land mean?
Back
Arable land is land suitable for growing crops.
05
Front
What can arithmetic density hide about where people live?
Back
It gives a broad regional average, not a map of where people live. Deserts, mountains, or other sparsely populated areas can lower the average even when people cluster in cities.
06
Front
What can physiological density much higher than arithmetic density suggest?
Back
It suggests that a relatively small share of the region’s land is arable, so more people depend on each unit of crop-suitable land.
07
Front
Does high physiological density prove that food is scarce?
Back
It can indicate pressure on food-producing land, but it does not prove food is scarce. Food availability also depends on yields, irrigation, technology, trade, diets, and other resources.
08
Front
What may high agricultural density indicate?
Back
It may indicate that many farmers work each unit of arable land and can be associated with labor-intensive farming.
09
Front
Does low agricultural density prove that farming is more productive?
Back
It can be consistent with more mechanized farming, but does not prove higher productivity. Tools, farm size, crops, and farmer definitions also matter.
10
Front
What pressures can high arithmetic density signal?
Back
It can signal broad pressure on housing, transport, infrastructure, and urban land, although a regional average can hide local differences.
11
Front
What is the arithmetic density of 12 million people across 60,000 km²?
Back
Divide 12,000,000 people by 60,000 km2: 200 people per km2.
12
Front
What is the physiological density of 12 million people across 15,000 km² of arable land?
Back
Divide 12,000,000 people by 15,000 km2: 800 people per km2 of arable land.
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