Slideware starts with a picture of a farm with a variety of vegetables pictured in the field. His presentation zooms in on each vegetable while he talks about it, and then zooms back out when he is done. This is an example of using as a visual aid.

Prezi

Explanation:

Prezi is a presentation software and a better alternative of Microsoft Powerpoint. The presentations made and viewed in Prezi more fluid, vibrant and generally more impressive than Powerpoint. 3D type of presentations can also be made in Prezi. Apart from these special properties, prezi provides the ability to users to zoom in and out the specific parts of a page during the presentation. So when a user talks about some things on page he can zoom in that particular object to make the presentation more focused.

answercountries with higher real income per capita tend to have higher levels of this index.