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.
Below are some additional facts about lightning: 1  25 million - Average U.S. cloud-to-ground lightning strikes per year. 2  50,000 degrees (F) - Temperature that lightning can reach. 3  1,800 - Average number of thunderstorms on earth at any given moment.  100 - Number of times lightning hits earth per second.