Each Student at a University Takes Many Courses; Each Course

question 21

Multiple Choice

Each student at a university takes many courses; each course is taken by many students. The semester that a student took a course and the grade that the student received in the course is called _____ data.

• A) index
• B) key
• C) pointer
• D) direct access
• E) intersection

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Definitions:

Scoria

A dark-colored volcanic rock with abundant gas bubbles, typically found around basaltic volcanoes.

Debris Flows

Rapid downhill movement of water-saturated soil, rocks, and vegetation, often triggered by heavy rainfall or rapid melting of snow.

Composite Volcanoes

Volcanoes characterized by explosive eruptions and composed of layers of volcanic ash, lava, and rocks.

Subduction

The process where one tectonic plate moves under another and sinks into the Earth's mantle, often associated with volcanic activity and earthquakes.