The economic boom and the flow of migrants has also created a problems of a different kind.

The flow of water out of the glacier created a river to rival the Amazon in size, at least for a few minutes.

Now economists are warning that huge flows of money into the country could create inflationary pressure.

The flow of charge carriers between the hot and cold regions in turn creates a voltage difference.

Where young flows have created new lands, land is more unstable and can break-off into the sea.

This flow has created a new life where we are now in danger of becoming dependent on this method of access to information.

This flow of energy from the sun creates structure and order from the disorder.

The easy flow of animals to adjacent areas creates travel lanes along borders.

These flows created lava tunnels which still exist under the ground surface.

A major flow of refugees from Zaire could create havoc in Rwanda.