Which One of the Following Statements Is True Concerning Scalar

question 59

Multiple Choice

Which one of the following statements is true concerning scalar quantities?

• A)Scalar quantities must be represented by base units.
• B)Scalar quantities have both magnitude and direction.
• C)Scalar quantities can be added to vector quantities using rules of trigonometry.
• D)Scalar quantities can be added to other scalar quantities using rules of trigonometry.
• E)Scalar quantities can be added to other scalar quantities using rules of ordinary addition.

---

Definitions:

Pyroclastic Flow

A rapid stream of heated gas and volcanic substances flowing down a volcano's slopes amid an explosive eruption.

Tephra

A pyroclastic material, regardless of size or origin, ejected during an explosive volcanic eruption; includes ash, pumice, and rock fragments.

Gas Flux

The rate of gas transfer from one phase or place to another, often measured in environmental and geological studies.

Explosive

Characterized by a sudden and forceful release of energy, often with the generation of high temperatures and the release of gases.