What are the unfamiliar words that are key to understand the text? Provide 5 and explain the meaning based on the context of the sentence.

Common Types of Context Clues

Root word and affix: People who study birds are experts in ornithology.

Contrast: Unlike mammals, birds incubate their eggs outside their bodies.

Logic: Birds are always on the lookout for predators that might harm their young.

Definition: Frugivorous birds prefer eating fruit to any other kind of food.

Example or illustration: Some birds like to build their nests in inconspicuous spots — high up in the tops of trees, well hidden by leaves.

Grammar: Many birds migrate twice each year.

What are the unfamiliar words that are key to understand the text?

The most common strategies for comprehending a new or unfamiliar word include using a dictionary or guessing word meaning from the context of the sentence.

Sorry about the rest, no, I speak very little English and about your context of a sentence because it would be better if you showed your homework in a photo to understand it.