A nuclear stress test is similar to the exercise stress test or pharmacological (chemical) stress test, but a small amount of radioactive substance is used to determine the health of the heart and blood flow to the heart.
The following are the four basic types of economics resources: Land â natural resources such as iron ore, gold, diamonds, oil, etc. Labor â human resources such as wage-earning workers. Capital â plants and equipment used in the production of final goods, such as assembly lines, trucks, heavy duty machinery, factories, etc.
There are three basic resources or factors of production: land, labour and capital. The factors are also frequently labelled producer goods or services to distinguish them from the goods or services purchased by consumers, which are frequently labeled consumer goods. All three of these are required in combination at a time to produce a commodity.