The Oldest Stars in the Galaxy Are Usually ________ in Heavy

question 14

Multiple Choice

The oldest stars in the galaxy are usually ________ in heavy elements because ________.

• A) low; they have had time to accrete unprocessed gas from the interstellar medium
• B) low; they were formed before much chemical enrichment had taken place
• C) low; old stars must have low mass, and low-mass stars do not generate many heavy elements
• D) high; they have turned a lot of their initial hydrogen and helium into heavier elements
• E) high; stars with higher proportions of heavy elements have shorter lifetimes

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Definitions:

Chemicals in Workplace

Substances used or present in occupational settings, which can pose health or safety risks if not properly managed.

Employee Right

Legal, moral, or ethical entitlements pertaining to employment conditions, such as safety, privacy, and freedom from discrimination.

Restraining Order

A legal order issued by a court to protect an individual from being harmed or harassed by another person.

Walkaround

An informal inspection or tour of a workplace or facility for evaluation or informational purposes.