Looking at the sentence, it's is obvious that 'Amazon' is the adjective word that describes the birds in South America. Other than that, it is being capitalized because it is at the same time a nationality / race.
Below are the choices that can be found elsewhere:
<span>a. Stated directly
b. explicit
c. indirect
d. assumed
</span>
Implied causes and effects are often indirect. The answer is C.
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Comparison words: Same, Similar, alike, as well as...
Contrast words : Different, on the other hand, opposed to...
Answer:
I think it is 3.) Creating a summary