Geography Flashcards

What is a delta?

Answer: A triangular deposit of sediment at the mouth of a river

A delta is a landform created by the deposition of sediment carried by a river as it enters a slower-moving body of water, typically at the river's mouth.

Which of the following best describes 'demographic transition'?

Answer: The historical shift from high birth and death rates to low birth and death rates

The demographic transition model describes how countries typically move from high birth and death rates (pre-industrial) to low birth and death rates (post-industrial) as they develop economically.

What is the impact of deforestation on the water cycle?

Answer: It reduces transpiration and increases surface runoff, leading to flooding and reduced groundwater recharge

Deforestation removes trees that contribute to transpiration, disrupts the water cycle, reduces groundwater recharge, increases surface runoff (flooding risk), and causes soil erosion.

What is an aquifer?

Answer: An underground layer of rock or sediment that holds water

An aquifer is an underground layer of permeable rock, sediment, or soil that contains and can transmit groundwater, serving as a major source of freshwater.

What does 'ageing population' mean?

Answer: A population where the median age is increasing and the proportion of elderly people is growing

An ageing population is characterised by a rising median age and increasing proportion of elderly people, typically due to lower birth rates and longer life expectancy.

Which economic sector involves the processing of raw materials into goods?

Answer: Secondary sector

The secondary sector involves manufacturing and industry — transforming raw materials from the primary sector into finished goods (e.g., factories, construction).