An RFID tag is a microchip combined with an antenna in a compact package; the packaging is structured to allow the RFID tag to be attached to an object to be tracked.
A device that tracks movement is a : a) PSS b) PDA c)RFIDtag. d)patientstimulator.
RFID tag
Heliostat
thermostat
A radar tracks aircraft in the sky
a radar
fossilized tracks of its movement
laser light
The study of movement tracks the travel of people, goods or ideas from on location to another.
The water cycle
bubble chamber
Weather sattelites.