Y
Yardang: In geography, yardang refers to a keel-shaped crest or ridge of
rock. It is formed by the action of wind, usually parallel to the prevailing
wind direction.
Yield: how many crops a particular field, farm, or area of land
produces. It also applies to milk (yields) from dairy cows.
Yield: The term yield has a lot of interpretations in several contexts.
However, in geography, the term yield refers to give forth or produce by a
natural process or in return for cultivation.
Younger Dryas: In geography, dryas refers to any creeping plant belonging
to the genus Dryas, of the rose family, having solitary white or yellow
flowers, comprising the mountain avens. Hence a younger dryas refers to a dryas
that is younger.
Youthful Population Structure: seen as a wide base on population
pyramids that reflect high birth rates in LEDCs.
Youthful Population: in the population structure of LEDCs, there is
often a higher proportion of young people due to high birth rates and a
reduction in infant mortality due to better nutrition, education and medical care.
This may create problems since the children need feeding, housing, education
and eventually a job. Medical care and education has to be paid for by taxing a
proportionally small number of workers.
