The four components of human development are physical development, cognitive development, social development, and emotional development.

1. Physical Development:
Physical development refers to the changes that occur in the body from infancy to adulthood. This includes changes in height, weight, and motor skills. Physical development is influenced by genetics, environment, and nutrition.

2. Cognitive Development:
Cognitive development refers to the changes in a person's ability to think, reason, and understand from infancy to adulthood. This includes language development, memory, problem-solving, and decision-making skills. Cognitive development is influenced by experiences, education, and culture.

3. Social Development:
Social development refers to the changes in a person's ability to interact with others and form relationships from infancy to adulthood. This includes communication skills, empathy, and understanding social norms. Social development is influenced by family, peers, and society.

4. Emotional Development:
Emotional development refers to the changes in a person's ability to express and regulate their emotions from infancy to adulthood. This includes self-awareness, self-esteem, and coping skills. Emotional development is influenced by experiences, relationships, and culture.

In summary, human development is a complex and multifaceted process that involves physical, cognitive, social, and emotional changes. These components are interrelated and influenced by various factors such as genetics, environment, education, culture, and relationships.

Four components of human development are :
• Equity - Refers to making equal access to opportunities available to everybody.
• Sustainability - Continuity in the availability of opportunities.
• Productivity - Means human labour and productivity in terms of human work.
• Empowerment - To have the power of making choices, such power comes from capability and freedom.