Physical Components to a computer are called hardware.
Answer:
D. infrared.
Explanation:
Wireless technology for communication uses electromagnetic wave to transmit signals between location. It eliminates the need of cables for connecting network devices.
In previous wireless technology implementation, Infrared rays were used (in tv remotes), which needed to be in the line of sight to its destination. Although it was fast, it has many limitations for a long-haul transmission like its short transmission range, easily blocked by objects and its uni-directional properties.
The best and most correct answer among the choices provided by the question is the second choice. <span>Siltstone is made mostly of silt. </span>I hope my answer has come to your help. God bless and have a nice day ahead!
Lets you know if their are any certain hazards or messes on the property like mold or ants
