To provide an appropriate title for the diagram, I would need to know its content and context. A good title should succinctly reflect the main theme or purpose of the diagram, capturing the key information it conveys. If you share details about the diagram, I can suggest a fitting title.
Meters
kilogram because its the mass you calculating.
The most appropriate metric unit to measure the mass of a concrete block is kilograms (kg).
The most appropriate unit of length for measure the distance between Las Vegas and Los Angeles would be either miles or kilometers.
Liters or gallons would be appropriate units of measurement for measuring the volume of a large pot.
Venn diagram.
histogram
A metre would be the most appropriate unit.
It depends on what you're measuring it for. You could be testing it for the following measurements: Height (using meters would be the most appropriate). Length (using meters would be the most appropriate, kilometres if long enough) Mass (tonnes would be the most appropriate). Volume (m3 would be the most appropriate). Area (m2 would be the most appropriate). Time taken to cross (depends on the length of the bridge. Minutes and seconds would be appropriate).
A Venn diagram would be the most appropriate representation for the statement "If it is not a gorilla, then it is not an ape." There would be two circles, one representing gorillas and one representing apes. The area outside of the gorilla circle but still inside the ape circle would be shaded to indicate that there are other types of apes besides gorillas.
Doctor would be most appropriate
Anything would be appropriate, but would be most appreciated might be a monogrammed necklace or even a handbag.
In most cases, you can obtain a duplicate title on the same day of request by visiting the appropriate government office and paying the required fee.
Formal language is the most appropriate language when writing a business letter.
Most botany reference books would have such a diagram but there are some online sites that have diagrams.
kilograms
15