Apublic key is part of what security measure?

What is one reason why indoor air pollution has become an increasing problem.

Jason is working on a microsoft excel worksheet and he wants to create a print preview shortcut. his teacher asks him to access the customization option to create the new shortcut. which two tabs should jason select to place the print preview shortcut on the worksheet toolbar? a. new tab (custom) and new group (custom) b. new file tab (custom) and new tab (custom) c. new custom group and new command d. new custom tab and new command

Lisa is making a presentation for her project and she wants to use the logo of her company in her presentation. which element would she use to make her logo stand out in her presentation? a. gradation b. contrast c. alignment d. balance