Which of the Following Is a Physical Change

question 146

Multiple Choice

Which of the following is a physical change?

• A)Carbon combines with oxygen to form carbon dioxide.
• B)Ice melts at 0°C.
• C)A red substance is decomposed by heat to form mercury and oxygen.
• D)Water is decomposed by electricity into hydrogen and oxygen.

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Definitions:

Brain Development

The process of growth and maturation of the brain, which starts in utero and continues into early adulthood, involving changes in structure, function, and connectivity.

Myelination

The formation of a myelin sheath around the nerve fibers, which increases the speed and efficiency of electrical signals in the nervous system.

Peripheral Slowing Hypothesis

The theory that suggests that overall processing speed declines in the peripheral nervous system with increasing age.

Peripheral Nervous System

The part of the nervous system that consists of the nerves and ganglia outside of the brain and spinal cord, responsible for connecting the central nervous system to limbs and organs.