Why Does Stellar Main- Sequence Lifetime Decrease with Increasing Stellar

question 141

Multiple Choice

Why does stellar main- sequence lifetime decrease with increasing stellar mass?

• A)It doesn't; higher mass stars have more hydrogen available for fusion, and thus have longer lifetimes.
• B)Higher outward pressure prevents the core hydrogen from being replenished by the star's outer layers.
• C)Higher core temperatures cause fusion to proceed much more rapidly.
• D)Strong stellar winds cause higher mass stars to lose mass quickly.

---

Definitions:

High-Tech Industry

Industries involved in producing advanced technological goods and services, including computing, telecommunications, and biotechnology, among others.

North American Free Trade Agreement

A trade agreement between Canada, Mexico, and the United States aimed at reducing trade barriers and facilitating free trade.

Slobodan Milosevic

A Serbian and Yugoslav politician who served as the President of Serbia (1989-1997) and President of the Federal Republic of Yugoslavia (1997-2000), known for his role in the ethnic conflicts and wars that led to the breakup of Yugoslavia.

Josip Broz

Known as Tito, he was a Yugoslav communist revolutionary and political leader who served as Prime Minister (1945–1963) and President (1953–1980) of the Socialist Federal Republic of Yugoslavia.