Which device is used to record temperature?

A$.$ Thermistor

B$.$ Gyroscope

C$.$ Accelerometer

D$.$ EKG

How many designations are there for wearable technology?

A$.2$

B$.3$

C$.10$

D$.25$

Biometrics refers to body calculations and measurements based on human characteristics like fingerprints and face recognition.

True

False

In $2019,$ how many people globally used wearables?

A$.100$ million

B$.227$ million

C$.525$ million

D$.722$ million