To determine if PS Plus was billed without your knowledge, you should check your bank or credit card statements for any recent charges from PlayStation. You can also review your PlayStation account transaction history to see if there are any unexpected charges for PS Plus. If you believe you were billed without your knowledge, you should contact PlayStation customer support to address the issue and request a refund if necessary. **

General knowledge about big cats includes the fact that they are apex predators, meaning they are at the top of the food chain in their ecosystems. They are known for their strength, agility, and hunting abilities. Big cats such as lions, tigers, leopards, and jaguars are found in various habitats around the world, from the savannas of Africa to the jungles of South America and the forests of Asia. These majestic animals are often the subject of conservation efforts due to threats such as habitat loss and poaching. **

The knowledge tested in crossword puzzles can be considered general knowledge to a certain extent. Crossword puzzles often cover a wide range of topics, including history, literature, science, and popular culture, which are considered part of general knowledge. However, some crossword puzzles may also include more specialized or niche topics that may not be considered part of general knowledge. Overall, crossword puzzles can be a fun way to test and expand one's general knowledge across a variety of subjects. **

Basic knowledge refers to fundamental information and skills that are essential for everyday life, such as reading, writing, and basic math. School knowledge, on the other hand, refers to the specific subjects and topics that are taught in a formal educational setting, such as history, science, and literature. While basic knowledge is universal and necessary for functioning in society, school knowledge is more specialized and focused on academic learning. **

Thirst for knowledge and hunger for knowledge are similar in that they both represent a strong desire to learn and acquire new information. However, thirst for knowledge implies a strong and urgent desire, similar to the feeling of being physically thirsty. On the other hand, hunger for knowledge may suggest a more general or long-term desire to learn, akin to the feeling of being hungry. Overall, while both terms convey a strong desire for knowledge, the nuances in their meanings suggest slight differences in intensity and immediacy. **

Grades can be a reflection of knowledge to some extent, as they are typically based on assessments of a student's understanding of a subject. However, grades may not always accurately represent a student's true level of knowledge, as they can be influenced by factors such as test-taking skills, effort, and external circumstances. It is important to consider other forms of assessment and feedback in addition to grades to gain a more comprehensive understanding of a student's knowledge and abilities. **

There is no definitive evidence to suggest the existence of secret knowledge that is inaccessible to the general public. While certain information may be kept confidential for various reasons, the idea of hidden or exclusive knowledge is often associated with conspiracy theories or myths. In reality, knowledge is typically shared and disseminated through education, research, and communication. **

Knowledge and crystalline intelligence are related concepts but not the same. Knowledge refers to the information and understanding that a person has acquired through learning and experience. On the other hand, crystalline intelligence is a component of intelligence that involves the ability to use learned knowledge and experience to solve problems and make decisions. While knowledge is a key component of crystalline intelligence, crystalline intelligence also encompasses other cognitive abilities such as reasoning, comprehension, and problem-solving skills. **