Question

central idea and summary
which statement best conveys the central idea of this encyclopedia article?
a the moon undergoes several phases which can be seen from earth.
b the process of waxing and waning are completely different from each other.
c the orbits of the moon and earth around the sun cause very interesting events.
the moon reflects the light it receives back to earth because it doesnt make its own light.
which two sentences can be added to this encyclopedia article that will further support its central idea?
a tides of the ocean are created mostly by the magnetic pull of the moon
b the amount of light viewers see on the moon from the earth changes each day
c other planets in our solar system also process...
(the left side has a usa test prep image with text about phases of the moon: the moon does not produce its own light... etc.)

Explanation:

First Question (Which statement BEST conveys the central idea)

The article focuses on the Moon's phases and how it reflects sunlight (since it doesn't produce its own light) to be seen from Earth. Option A is about phases but the article also explains the reflection. Option B misstates waxing/waning as "completely different" (they are part of the phase cycle). Option C is about orbits and events, not the main focus. Option D explains the Moon's light reflection (no own light, reflects sun's light to Earth) which aligns with the article's content (mentions Moon doesn't make light, reflects sun's light, and phases related to that).

The central idea is about the Moon's light reflection and resulting phases. Option B ("The amount of light viewers see on the Moon from the Earth changes each day") supports the phase changes (waxing/waning involves daily light change). Another likely option (if C is "Other planets in our solar system also produce..." but no, wait, the article is about Moon. Wait, maybe C is "Other planets in our solar system also have phases" which would support the Moon's phase concept (showing it's a solar system phenomenon related to light reflection). But with given visible options: B is about daily light change (supports phases), and if C is about other planets' phases, that also supports. But since the user's image shows partial C, but for the two, likely B and (if C is about other planets' phases) or another. However, based on visible, B is a clear support. If we assume two, B and (maybe a missing option, but with given, B is correct, and another like C if it's about other planets' phases (supporting the Moon's phase mechanism). But with the visible options, the best is B and (assuming C is about other planets' phases, but since the user's image cuts C, but the process:

Central idea: Moon reflects light (no own light), phases from that. So sentences supporting should relate to light reflection or phase changes. Option B: daily light change (phases) – supports. Option A: tides (irrelevant). So one is B, another would be a sentence about light reflection or phases. If C is "Other planets... also have phases" (showing phase mechanism is about light reflection, same as Moon), that supports. So the two are likely B and C (if C is about other planets' phases) or B and another. But with the given options, the answer would involve B and (the relevant one, likely B and C if C is about other planets' phases, or B and a missing option. However, based on the visible, the most supported is B. But since the question is "which two", and assuming the options are A, B, C:

The central idea involves the Moon’s light reflection (no own light) and phase changes (waxing/waning, daily light variation). Option B (“The amount of light viewers see on the Moon from the Earth changes each day”) directly supports the phase - related light changes (waxing, waning, daily variation). Another option (e.g., if C is about other planets having phases) would support by showing the phase phenomenon is related to light reflection (similar to the Moon’s case). Option A (tides from magnetic pull) is unrelated to light/reflection/phases. So the two sentences are likely B and the option about other planets’ phases (or a similar relevant one).

Answer:

D. The Moon reflects the light it receives back to Earth because it doesn't make its own light.

Second Question (Which two sentences support the central idea)

(Note: Assuming options are A, B, C (and maybe D, but visible options are A, B, C with partial C). The central idea is about Moon's light reflection and phases. Option B: "The amount of light viewers see on the Moon from the Earth changes each day" relates to the phases (waxing/waning, daily light change) which supports the central idea. Option A: Tides from magnetic pull is unrelated to light/reflection/phases. Option C (partial) about other planets' phases might support, but among visible, B is relevant. If we assume two, likely B and another (maybe C if complete, but with given options, B is a strong choice. However, since the question is "which two", and assuming the third option (C) is about other planets having phases (supporting the Moon's phase concept), but with visible: