DEFINITION of 'Aggregate Demand'. The total amount of goods and services demanded in the economy at a given overall price level and in a given time period. It is represented by the aggregate-demand curve, which describes the relationship between price levels and the quantity of output that firms are willing to provide. Normally there is a negative relationship between aggregate demand and the price level. Also known as total spending.
Answers. Best Answer: Up to about 120 decibels, which is about as loud as a gunshot. Some of the factors that affect the loudness are energy released, the environment, and of course the distance you are from the lightning.
Thunderstorm and Lightning Safety Tips. A thunderstorm comes from rain-bearing clouds that also produce thunder and lightning. All thunderstorms produce lighting and therefore are dangerous. A thunderstorm is classified as a severe thunderstorm when it contains large (at least one inch) hail and/or winds of 58 MPH or greater. If you can hear thunder, you are close enough to be affected by lightning, which can strike up to 10 miles ahead of or trailing a storm.