In 1968 the average salary of men teachers in maintained schools in England and Wales was Â£1,646. I estimate that the last two pay settlements have raised this figure to about Â£1,880. The comparable figure at 31st March, 1963, was Â£1,244.
Two main tectonic structures are spreading centers and subduction zones. Spreading centers occur at the boundary between two plates that are moving apart, called divergent plate boundaries. Here the plate motion opens a gap between the plates and magma from the mantle rises up through it.
Definition of zone for Students. 1  1 : a region or area set off or characterized as different from surrounding or neighboring parts The United States is located in one of earth's temperate zones. 2  2 : one of the sections of an area created for or serving a particular use or purpose a town's business zone.