Write a program that replaces words in a sentence. the input begins with an integer indicating the number of word replacement pairs (original and replacement) that follow. the next line of input begins with an integer indicating the number of words in the sentence that follows. any word on the original list is replaced. assume that the list will always contain less than 20 word replacement pairs.

Which of the following is a way that advancements in technology improve humans' ability to measure air quality and protect human health? a. air quality data gathered by new instruments can be used to reduce exposure to pollutants. b. new technologies enable natural and human-made pollution sources to be located and monitored. c. air quality data gathered by new instruments can be used to predict trends in pollution over time. d. new technologies allow governments to make informed decisions about the regulation of pollution. (choose more than one)

All of the following are characteristics that must be contained in any knowledge representation scheme except

What does 21 pilots middle aged name as a band 15 years prior to them naming their band 21 pilots?