Is/are valuable in areas such as monitoring environmental changes, monitoring traffic or military activity, protecting property, efficiently operating and managing machinery and vehicles, monitoring supply chain management, or detecting biological, chemical, or radiological material.

Wireless Sensor Networks (WSN's)

Explanation:

Wireless Sensor Networks refers to a group of sensors  monitoring and recording the conditions of environment physically. Organizing the data efficiently.

In computer Science world wireless sensor are areas with numerous workshops for operating and managing machinery and vehicles.

Detecting biological system is to detect the slight moments of biological environments conditions .It is a prototype network for detecting a ground base nuclear devices , sensors and radio logical material.

Wireless sensor networks are used to monitor and managing the production both in chemical and filed.

yes! has an email you can use to contact them.

explanation:

here’s the link to their contact page:

which functions return a valid value without any arguments?

(-blank- and -blank- return a valid value without any arguments.)

1st -blank-

today

sqrt

count

2nd -blank-

round

now

sqrt