To determine which diagram represents a full moon when observed from Earth's surface, we need to understand the positions of the Sun, Earth, and Moon during this phase.
A full moon occurs when the Moon is directly opposite the Sun in relation to the Earth. This means that the Earth (B) is positioned between the Sun (A) and the Moon (C).
Let’s analyze each option:
A. A------< B
- In this diagram, the Moon is not positioned opposite the Sun.
B. A------<-B->--C
- In this diagram, the Moon is positioned between the Sun and Earth, which does not represent a full moon.
C. A----------< B | V C
- In this diagram, the Moon is below the line between the Sun and Earth, which also does not represent a full moon.
D. A--------C-<-B
- Here, the Moon is directly to the right of Earth while the Sun is to the left, which positions the Earth between the Sun and the Moon, indicating a full moon.
Based on these observations, the correct diagram that represents when a full moon would be observed from Earth's surface is:
D. A--------C-<-B