Why turning a mouse wheel changes my volume in my computer

Im doing this last minute and literally none of my neighbors or people that my dad works with use excel so if anyone could me make up an example

Lakendra finished working on her monthly report. in looking it over, she saw that it had large blocks of white space. what steps could lakendra take to reduce the amount of white space?

Why is it uncommon for users to perform searches directly in database tables? a.)users are discouraged from interacting directly with tables because they might confuse tables with spreadsheets. b.) users are discouraged from interacting directly with tables because this may result in unintended changes to source data. c.)users do not have the technical skills required to perform searches directly in database tables. d.)users do not have the permissions required to perform searches directly in database tables.