Question

What is used during times of natural calamities such as flood or earthquake

Answer 1

Satellites - satellites are in continual use monitoring the earths weather patterns in attempts to predict natural calamities such as floors, earthquakes. Once predicted the satellite will be able to track and record the severity, pathway, secondary effects of the initial natural disaster. Satellites will also be in use during a natural disaster to transmit signals for the issuing national warnings, news coverage.