Examlex
Nitrogen is colorless because the minimum energy to excite an electron is in the ultraviolet section of the spectrum.
Old Age
The latter stage of the human lifespan, characterized by declines in physical and sometimes cognitive function, and often involving retirement from work and increased health care needs.
Death Anxiety
A learned emotional response to death-related phenomena characterized by extreme apprehension; used synonymously with death fear.
Thanatologists
Specialists who study the psychological and social aspects surrounding death and dying.
Death Education
The process of teaching and learning about the biological, sociological, psychological, and cultural aspects of death, dying, and bereavement.
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