#! /bin/bash## name of the program is test_script_a. shecho " enter 2 numbers"read y z## main part of the programx=0y=0z=0while [ $y -gt 0 ]dox=$(( $x + $z))y=$(($y – 1))wait $xdoneecho $x## end of programwhat is the output of the program if y=5 and z=10?

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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)