Is a actinosphaerium autotroph or heterotroph?

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.

Explain the process that creates the heat of the sun?

Need with these questions . need the answers in a rush for these questions are the answers i put down are correct or not? ?