Final answer:
The statement about an unknown unknown being a cultural reflection is false; it relates to knowledge limitations. A theory does not become a law over time; this is also false. A pebble dropped in water does create a pulse wave, and cultural universals are found in all cultures worldwide.
Step-by-step explanation:
The statement 'An unknown unknown is an example of a cultural reflection of data' is considered false. An unknown unknown, in a knowledge or data context, usually refers to information that is not currently known nor comprehended. It's not particularly a cultural reflection but rather a concept that deals with the limitations of our knowledge and ability to predict. This idea was famously brought to public attention by former US Secretary of Defense Donald Rumsfeld regarding the lack of evidence linking the government of Iraq with the supply of weapons of mass destruction to terrorist groups.
When discussing scientific concepts and the development of scientific knowledge, it's essential to note that a theory does not become a law simply due to the passage of time. This statement is false. Scientific laws and theories serve different purposes: laws describe observable phenomena, while theories explain how and why those phenomena occur. A theory does not 'graduate' into becoming a law with time.
Regarding the question of whether a pebble dropped in water is an example of a pulse wave, the answer is true. Pulse waves occur when a single disturbance moves through a medium; in this case, the ripple created by the pebble is a type of pulse wave.
Cultural universals are those elements, patterns, traits, or institutions that are common to all human cultures worldwide. Thus, the correct answer is that a cultural universal is something that is found in all cultures.
Underlying these diverse concepts is the recognition that our cultural backgrounds and societal structures significantly shape the way we view and interpret information, a component of what's known as cultural relativism.