What Is Thought to Be the Physical Mechanism That Was

question 62

Multiple Choice

What is thought to be the physical mechanism that was responsible for the present mix of chemical elements in the universe?

• A) All the known elements have been formed by the breakup (radioactivity) of the heavy elements formed in the initial Big Bang.
• B) All the known elements were formed in the Big Bang.
• C) Hydrogen and helium were formed in the Big Bang, whereas the heavier elements have been slowly forming by collisions in cold interstellar gas clouds.
• D) Hydrogen and helium were formed in the Big Bang, whereas the heavier elements were made in the centers of stars.

---

Definitions:

Turn of the Century

A phrase referring to the transition from one century to another; often associated with the period around the 19th and 20th centuries, marked by significant social, technological, and political changes.

Suburbs

Residential areas located on the outskirts of a city or large town, characterized by lower population density, single-family homes, and community-oriented amenities.

Gay Marriage

The legally or socially recognized marriage between two persons of the same sex, also known as same-sex marriage.

Official Language

The language designated by law to be used in government functions and proceedings, often reflecting the primary language spoken in a country.