Question

Question was provided via image upload.

Explanation:

Analyze question (a)

The question asks: "Which feature of waves is used for navigation?"
Based on general knowledge of traditional wave piloting (such as Polynesian navigation), navigators read the direction and patterns of ocean swells to determine their heading.
Therefore, the correct choice is "The direction the waves come from."

Analyze question (b)

The question asks for the best word to replace "overcast" in the sentence: "When skies are too overcast for navigators to use the stars..."
"Overcast" refers to a sky covered with clouds, which blocks the stars from view.
Therefore, the correct synonym is "cloudy."

Analyze question (c)

The question asks: "The writer has most likely written this for:"
The tone, simple vocabulary, and explanatory nature of the questions indicate an educational text designed for school-aged learners rather than young children, expert navigators, or research scientists.
Therefore, the correct audience is "school students."

Analyze question (d)

The question asks: "To help the reader trust this information, the writer includes the names of:"
In non-fiction and informational texts, citing credible authorities, experts, or investigators helps build trust and authority (ethos).
Therefore, the correct choice is "researchers."

Answer:

Question (a)

• The size and height of the waves.
• The sounds that the waves make.
• The direction the waves come from. (Correct answer)
• The gaps between each of the waves.

Question (b)

• dark
• windy
• cloudy (Correct answer)
• bright

Question (c)

• young children.
• expert navigators.
• school students. (Correct answer)
• research scientists.

Question (d)

• tools
• birds
• planets
• researchers (Correct answer)