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An engine is a machine that converts fuel into power to make a vehicle run. In most vehicles, the engine burns fuel, such as gasoline or diesel, to create energy. This energy is then used to move parts like pistons, which turn the wheels. The engine is often considered the heart of a vehicle because it powers all its movements. The performance of the engine, such as how efficiently it uses fuel and how much power it produces, directly affects how well the vehicle runs.

The leg is a major part of the human body that extends from the hip to the foot, providing support, mobility, and locomotion. It consists of bones, such as the femur, tibia, and fibula, along with muscles, ligaments, blood vessels, and nerves. The leg enables walking, running, and various movements, playing a crucial role in everyday activities and physical performance. Understanding the anatomy and function of the leg is essential for maintaining proper posture, balance, and overall musculoskeletal health.

Blindness is a condition where a person lacks or loses their ability to see completely or partially. It can be caused by various factors such as eye diseases, injuries, or conditions affecting the optic nerve or brain. Blindness can range from mild visual problems to complete loss of sight. People who are blind may use alternative techniques and tools to navigate their surroundings, such as using a cane or guide dog, reading in braille, or using assistive technology. While blindness can significantly impact daily life, many individuals adapt and lead fulfilling lives with the support of specialized services and resources.

A meal is a serving of food eaten at a particular time, typically breakfast, lunch, or dinner. It can consist of one or more dishes, such as a main course along with side dishes or accompaniments. Meals provide nourishment and sustenance for the body and are often enjoyed in the company of others, whether it is family, friends, or colleagues. They can range from simple and quick options to elaborate and formal affairs, depending on individual preferences and cultural traditions.