You typically attach a file to an e-mail message to provide additional information to a recipient.

Scattered pieces of files on the hard drive can be regrouped into sequential order using the ________ utility

Fill in the blank(s) with correct word

What are the light waves just below the frequencies in the visible spectrum extending up called?

A) Polar waves B) Multimode waves C) Sub-light waves D) Refractive waves E) Infrared light waves