Massive Stars Explode Soon After Fusion to Iron Begins Because

question 80

Multiple Choice

Massive stars explode soon after fusion to iron begins because:

• A) iron has the smallest binding energy of all elements
• B) neutrinos emitted during the fusion to iron are captured by the star's lighter elements
• C) fusion of elements heavier than iron requires energy, so the star runs out of fuel and cannot hold itself up against gravity
• D) stars do not contain elements heavier than iron; these are made in supernova explosions
• E) iron nuclei are unstable and rapidly break apart into lighter elements

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Definitions:

Ecology of Eating

The study of how the environment and ecological factors influence eating habits and food choices, including cultural, social, and physical aspects.

Situational Influences

Effects of external environmental factors on an individual's behavior, decisions, or attitudes, emphasizing the role of context.

Basal Metabolic Rate

The number of calories required to keep your body functioning at rest, representing the minimum amount of energy needed for vital organs to operate.

Serving Size

The standardized amount of food typically consumed in one sitting, used for nutritional labeling and dietary guidelines.