Consider the following activities: 1. Identification of narcotics on passengers at airports or in aircraft 2…
Consider the following activities: 1. Identification of narcotics on passengers at airports or in aircraft 2. Monitoring of precipitation 3. Tracking the migration of animals. In how many of the above activities can the radars be used?
Only one
Only two
All three
None
Solution
Radars are widely used to monitor precipitation (weather radar) and to track bird/insect/animal migrations. They cannot detect narcotics on passengers — that requires sniffer dogs, chemical sensors, or X-ray scanners.