Explanation

Mass media refers to a diverse array of media technologies that reach a large audience via mass communication. 

Explanation

Light rays from the sun appear to the naked eye as white light, but each ray contains a broad range of wavelengths

Explanation

Explanation

Because the Earth rotates on its axis, circulating air is deflected toward the right in the Northern Hemisphere and toward the left in the Southern Hemisphere. This deflection is called the Coriolis effect. 

Explanation

Commercial jet aircraft fly in the lower stratosphere to avoid the turbulence which is common in the troposphere below.

The stratosphere is very dry; air there contains little water vapor. 

Explanation

The geographic grid refers to the internationally-recognized system of latitude and longitude used to location positions on Earth's surface.

Explanation

Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body.

Explanation

In cryptography, encryption is the process of encoding information.

This process converts the original representation of the information, known as plain text, into an alternative form known as cipher text. 

Explanation

A hacker is an individual who uses computer, networking or other skills to overcome a technical problem. 

Explanation

Types of Printers

Laser Printers.

Solid Ink Printers.

LED Printers.

Business Inkjet Printers.

Home Inkjet Printers.

Multi function Printers.

Dot Matrix Printers.

3D Printers.