When Coal Is Heated in the Absence of Air,the Solid

question 115

Multiple Choice

When coal is heated in the absence of air,the solid left behind is called

• A)coal.
• B)coke.
• C)coal tar.
• D)carbon.

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Definitions:

Safety Needs

The second level in Maslow's hierarchy of needs, involving security, stability, and freedom from fear.

Esteem Needs

According to Maslow's hierarchy of needs, these are the fourth level of human needs, involving respect, self-esteem, and recognition from others.

Self-Actualization

The achievement or actualization of an individual's talents and abilities, often seen as a universal drive or necessity in all people.

Autonomic Nervous System

The part of the nervous system that controls involuntary actions in the body, such as heart rate, digestion, and respiratory rate, regulating the function of internal organs.