1) Word processing allows you to create and edit documents. It has various toolbars and options to format text, add images, check spelling, and layout pages.
2) Key features include formatting text using styles, fonts, sizes, colors, and effects. You can also insert headers, footers, page numbers, images, and tables.
3) The spell check and proofreading functions help ensure text is error-free before printing or sharing the document. Page setup allows switching between portrait and landscape page orientations.