Solar cells that convert the sun’s energy directly into electrical energy.

(a)  

A group of eight binary bits that are read together as a single “word.”

(a)  

Technology developed to send and receive information over a distance.

(a)  

 A device that allows people to touch and move objects in a virtual reality system.

(a)  

Weakened or dead pathogens that are introduced to the human body to stimulate an immune response.

(a)  

The practice of using the Internet and other communication devices to   transmit medical data between patients and medical organizations.

(a)  

A type of agriculture in which plants are grown in a water-based system, without soil. Liquid nutrients are added to the water that surrounds the roots of the plant.

(a)  

Doing things such as eating, playing, exercising, going to school or work, and performing other daily activities while causing little or no harm to the environment.

(a)  

A method of mixing organic matter such as food waste and lawn clippings and allowing them to decay to create nutrient rich soil.

(a)