In Massive Stars,three Helium Nuclei Fuse Together,forming a Carbon Nucleus,and

question 17

Multiple Choice

In massive stars,three helium nuclei fuse together,forming a carbon nucleus,and this reaction heats the core of the star.The net mass of the three helium nuclei must therefore be

• A)higher than that of the carbon nucleus.
• B)less than that of the carbon nucleus.
• C)the same as that of the carbon nucleus because mass is always conserved.
• D)the same as that of the carbon nucleus because energy is always conserved.

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Definitions:

Estimate Energy Needs

The process of determining the amount of energy (calories) a person requires to maintain their body functions.

USDA 5-step

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Multiple-pass Method

A dietary assessment technique involving several rounds of questioning to help respondents recall and accurately report their food intake.

24-hour Recall

A dietary assessment method where individuals report all the foods and beverages they have consumed in the past 24 hours.