How do you start a chat on emails through hangouts?

Which group on the home tab allows you to add shapes to a powerpoint slide?

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)

This technology is used to produce high-quality documents that look good on the computer screen and in print.