<span>A barometer would indicate a low air pressure in a snowstorm. The thermometer would also indicate a low temperature by showing a drop in temperature because of a cold weather. Both would support each other through its given data in Richmond.</span>
The appropriate choice for the non-event is ...
... A. The costs of sewing machines began to increase.
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Interchangeable parts generally reduce costs and increase demand (and production).
You need physical map to check the amazon river