Answer:
A "drop of water" is typically treated as a countable noun.
Step-by-step explanation:
You can say "one drop of water" or "two drops of water" to specify a specific quantity. However, in some contexts, especially when referring to water in a more general or abstract sense, it can be treated as uncountable, as in "There is water in the lake," where you're not specifying individual drops. So, it can be both countable and uncountable depending on the context.