Changes in the balance of an environment can be to organisms that live there

What do science, technology, and disease have to do with each other?

What is hydroelectric power produced by?

45 points how are people today being protected from tsunamis? earthquake data is analyzed to detemrine if a tsunami is likely, and if so, warnings are sent out. areas in tsunami risk zones are no longer heavily populated. radar is used to measure wave heights regularly. meteorologists study the winds to determine if wave heights will be large.