What Is the Origin of the Majority of Lunar Craters

question 35

Multiple Choice

What is the origin of the majority of lunar craters?

• A) Impacts by space probes
• B) Surface collapse after loss of groundwater by evaporation
• C) Volcanic explosions
• D) Impacts by meteoric material

---

Definitions:

Internal Validity

The extent to which research findings are free from contamination by extraneous variables.

Drug Conviction

A formal judgment by a legal authority determining that an individual is guilty of a drug-related offense.

Fake Profiles

False or fabricated online personas created on social media platforms or websites, often for deceptive purposes.

Participant Observation

A qualitative research method involving the systematic observation of people in their natural environment while participating in the same activities.