Which description of an industrial revolution is correct?

a new method of making goods that relies on machines rather than human labor

a trade system that allows businesses to sell goods in more than one country

a new system of paying workers for products they make by hand

a gradual change in the type of materials used to produce goods
Please hurry

social contract theory, nearly as old as philosophy itself, is the view that persons' moral and/or political obligations are dependent upon a contract or agreement among them to form the society in which they live

`stare decisis is a legal doctrine that obligates courts to follow historical cases when making a ruling on a similar current or future case. stare decisis ensures that cases with identical facts be approached in the same way, unless overruled by the same court or a higher court such as the us supreme court. simply put, it binds courts to follow legal precedents set by previous decisions.

stare decisis is a latin term meaning "to stand by that which is decided".

equal area projections

equal-area projection. a projection in which regions on the earth's surface that are of equal area are represented as equal.