What natural processes formed the great lakes–st. lawrence lowlands? what impact have these same processes had on most of northern ontario and the canadian shield?

Why might the new countries be interested in joining the european union (eu)?

People keep spending additional units of a particular resource on a want until their marginal benefit is  decreasing withgreater thanless thannot affected by  their marginal cost.

When volcanoes erupt, magma (hot, molten rock) rises toward the surface of the earth. as magma cools, solid rock forms. this rock contains substances from the interior of the earth. which of the following natural resources is likely to be plentiful near subduction zones where volcanic activity has occurred in the past?