A Global Context
Drag and drop items on the left to the corresponding item on the right. View accessibility instructions.

A term describing how material becomes a resource when it is valued and traded, has a price equivalent, and it enters the arena of things bought and sold.

Occurs when birth rates fall to a point that requires less investment in the very young, but before more investment is required on the elderly, and results in the relative and absolute increase of younger, more productive workers.

A seasonal wind in South East Asia that blows from land to sea in October to May (dry monsoon ) and from sea to land on May to September bringing rain (wet monsoon).

A layer of soil that remains frozen all the year round.

Generally refers to any sustained period of cooler weather, but more specifically often used to the period from 2.5 million to 10,000 years ago when permanent ice sheets were created and the weather cooled dramatically.

The zone between protected wild land and land being developed.

The global exchange of plants and animals unique to either the Old World or the New World.

The economic and political alliance of most European countries.

A large sea wave resulting from a tectonic shift.

When water is too warm coral will eject the algae in their tissues making them turn white. It is a sign of stress and an indicator of poor health and even the death of the coral.

A measure of the number of individuals below 14 and over 65 when compared to the total working aged population.

A rapid increase in the number of people between the ages of 15 and 24.

Back to top