Final answer:
A copyright is a form of legal protection that prevents copying of original works of authorship. The terms 'Some rights reserved' and 'All rights reserved' indicate the level of rights reserved by the copyright owner.
Step-by-step explanation:
A copyright is a form of legal protection that prevents copying of original works of authorship, such as books and music. The owner of a copyright has the exclusive rights to reproduce, display, and perform their work. Copyright protection usually lasts for the life of the author plus 70 years.
When it comes to indicating the level of rights reserved by the copyright owner, the terms 'Some rights reserved' and 'All rights reserved' are commonly used. 'Some rights reserved' is often associated with works that are licensed under Creative Commons, allowing limited use under specific conditions. On the other hand, 'All rights reserved' implies that no part of the work can be reproduced, displayed, or performed without the author's permission.