The acid definition by Liebig, a German chemist, states that acids are substances that contain hydrogen and can donate a hydrogen ion (H+) in a chemical reaction. This definition focuses on the ability of acids to release protons in solution, leading to the formation of hydronium ions (H3O+). Liebig's definition helped to establish the concept of acids as proton donors, which is a fundamental principle in the study of acid-base chemistry. **

Michelangelo believed that art is the imitation of nature, and that the true artist is one who can capture the essence of the natural world in their work. He also emphasized the importance of skill and technique in creating art, stating that the artist must have a deep understanding of anatomy and form in order to accurately represent the human figure. Additionally, Michelangelo believed that art should evoke emotion and move the viewer, and that the ultimate goal of art is to inspire and uplift the soul. **

The World Health Organization (WHO) defines health as a state of complete physical, mental, and social well-being, and not merely the absence of disease or infirmity. This definition emphasizes the holistic nature of health, including not just the physical aspect but also mental and social aspects. It highlights the importance of overall well-being and functioning in various aspects of life to achieve optimal health. **

The definition needs to be submitted by the deadline specified by the requester. It is important to adhere to the deadline to ensure timely completion of the task. If a specific deadline has not been provided, it is advisable to submit the definition as soon as possible to avoid any delays in the project. **

The definition has to be submitted by the deadline specified by the requester or the project manager. It is important to adhere to the submission deadline to ensure that the definition is reviewed and incorporated into the project plan in a timely manner. Missing the deadline could result in delays and impact the overall project timeline. **

O.J. Simpson was found not guilty in a criminal trial for the murders of Nicole Brown Simpson and Ron Goldman. However, he was found liable for their deaths in a civil trial. The question of his guilt or innocence is a matter of legal interpretation and personal belief. Ultimately, the legal system has determined him not guilty in a criminal trial, but guilty in a civil trial. **

"Equal" means having the same value, quantity, or measure. It is a general term used to indicate that two things are the same in some way. On the other hand, "equal by definition" refers to two things that are considered equal because they are defined as such, often based on a specific rule, definition, or criteria. In other words, equal by definition is a more specific and precise way of stating equality based on a predefined standard. **

The definition of roots of polynomials refers to the values of the variable that make the polynomial equation equal to zero. In other words, the roots are the solutions to the equation when the polynomial is set equal to zero. The number of roots of a polynomial is equal to its degree, and some roots may be repeated. The roots of a polynomial can be real or complex numbers, and they can be found using various methods such as factoring, the quadratic formula, or numerical methods. **