Describe call-and-response singing.

In music, call-and-response is a compositional technique that works similarly to a conversation. A “phrase” of music serves as the “call,” and is “answered” by a different phrase of music. These phrases can be either vocal, instrumental, or both.

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latin america is a region of racial and cultural diversity.  it is a group of countries and dependencies in the americas where romance languages are predominant. the term originated in 19th century france as amérique latine to consider french-speaking territories in the americas along with the larger group of countries where spanish and portuguese languages prevailed.

explanation:

a. theta waves. this is because the person is in a light sleep which means the brain waves would show these kind of waves.