1) is obsidian an igneous, sedimentary or metamorphic rock?

What a backup plan that you have created in a event you encounter a situation

The managing director of a company sends a christmas greeting to all his employees through the company email. which type of network does he use? he uses an .

What are two ways to access the options for scaling and page orientation? click the home tab, then click alignment, or click the file tab. click the file tab, then click print, or click the page layout tab. click the page layout tab, or click the review tab. click the review tab, or click the home tab?