When Any Star on the Main Sequence Was a Protostar

question 319

Multiple Choice

When any star on the main sequence was a protostar, it was

• A) larger and hotter.
• B) hotter but not necessarily larger.
• C) cooler but not necessarily larger.
• D) larger and cooler.

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Definitions:

Product Differentiation

A strategy in which one firm’s product is distinguished from competing products by means of its design, related services, quality, location, or other attributes (except price).

Monopolistic Competition

A market structure in which many firms sell a differentiated product, entry is relatively easy, each firm has some control over its product price, and there is considerable nonprice competition.

Product Differentiation

A marketing strategy that involves distinguishing a product or service from others in the market to make it more attractive to a particular target market.

Collusion

A situation in which firms act together and in agreement (collude) to fix prices, divide a market, or otherwise restrict competition.