A colon, when placed between two numbers indicates a ratio.
For example, 1:1 is saying that something is at a 1-to-1 ratio.
This would be better in the Math section though, but I'm happy to answer.
Answer:
A flash in the sky during a thunderstorm: lightning
visiting interesting places: sightsee
Explanation:
I cant really see the rest so this is from what I was able to see
Answer:
The main idea is about the lose of innocence
Answer:
adj. used or understood by all
Explanation:
Universal means it is used or understood by all, meaning this keyboard can be used with any system. This fits the description that it works with every computer in the house.
"present everywhere" would not be correct, it is not present everywhere as a keyboard.
"of or pertaining to all nature" is also incorrect, word choice needs to be specific, we aren't talking about nature.
"found in all languages" is incorrect, even though it is understood by all computers, we aren't talking about languages.
Answer: C) As many categories as she needs to understand the result