Answer:
A wave of sound!
Explanation:
sound waves are sound but sound comes in different wavelengths
I guess the correct answer is application
An applicatiοn layеr is an abstractiοn layеr that spеcifiеs thе sharеd cοmmunicatiοns prοtοcοls and intеrfacе mеthοds usеd by hοsts in a cοmmunicatiοns nеtwοrk. Thе applicatiοn layеr abstractiοn is usеd in bοth οf thе standard mοdеls οf cοmputеr nеtwοrking: thе Intеrnеt Prοtοcοl Suitе (TCP/IP) and thе ΟSI mοdеl. Althοugh bοth mοdеls usе thе samе tеrm fοr thеir rеspеctivе highеst lеvеl layеr, thе dеtailеd dеfinitiοns and purpοsеs arе diffеrеnt.
Answer:
1. Tabs: allows you to drag the window to a new location
Explanation: Tab is the key that is used to switch between different windows or websites that are opened at a time. This can be done by pressing Ctrl+Tab
2. Status Bar: displays whether the Web page is secure or not
Explanation: Status bar is used to show the status or information related to that page. Like Information related safety precaution.
3. Title Bar: allows you to quickly move between different Web sites
Explanation: Title bar consist of the name of different websites that are open at particular time. This shows at the top of the browser. We can quickly move on different websites using title of website.
4. Bookmarks: save Web addresses so you can return to them quickly
Explanation: Bookmarks are the pages that we save in bookmark menu, to re-open the page whenever its needed.