Generally Speaking, How Does the Surface Temperature and Luminosity of a Protostar

question 115

Multiple Choice

Generally speaking, how does the surface temperature and luminosity of a protostar compare to the surface temperature and luminosity of the main- sequence star it becomes?

• A)A main- sequence star is hotter and brighter than it was as a protostar.
• B)A main- sequence star is cooler and brighter than it was as a protostar.
• C)A main- sequence star is hotter and dimmer than it was as a protostar.
• D)A main- sequence star is cooler and dimmer than it was as a protostar.

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Price Level

The average of current prices across the entire spectrum of goods and services produced in the economy, often measured by consumer price indices.

Net Increase

The amount by which something grows or goes up, calculated by taking total gains and subtracting any losses.

Inventories

The stock of goods or materials that a company holds for the ultimate goal of resale or production.

Investment

The purchase of new plants, new equipment, new buildings, and new residences, plus net additions to inventories.