The density of air at 25°C and 1 atmosphere of pressure is about 
. What happens to the density of air as the temperature is increased? When the pressure is increased?
Definitions:
U.S. Per Capita Consumption
The average amount of goods and services consumed per person within the United States over a specified period.
Energy
The capacity to do work or produce power, manifested in various forms such as heat, light, motion, and chemical energy.
Commodity Prices
The market prices for raw materials and primary agricultural products that are traded on exchanges.
Productive Resources
The inputs used in the production of goods and services, including land, labor, capital, and entrepreneurship.
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