Which of These Statements Describes the Current Understanding of the Conservation

question 217

Multiple Choice

Which of these statements describes the current understanding of the conservation of mass and energy?

• A) Mass is conserved; energy is not conserved.
• B) Both mass and energy are separately conserved.
• C) The sum of mass (times c²) and energy is conserved.
• D) Physicists are still searching for a comprehensive conservation rule involving mass and energy.

---

Definitions:

Neuritic Plaques

Abnormal clusters of protein fragments and cellular material that form in the brains of individuals with Alzheimer's disease and other neurodegenerative conditions.

Neurofibrillary Tangles

Abnormal accumulations of tau protein inside nerve cells, commonly associated with Alzheimer’s disease and other neurodegenerative disorders.

Lorazepam

A medication primarily used to treat anxiety disorders, acting as a sedative and calming agent by affecting the brain and nerves.

Digoxin

A medication used to treat heart conditions by increasing the efficiency of the heart and controlling its rate.