How long is 5 half lives if the half life is 2.6 hours? Remember to round to the correct number of significant figures and use units ( hours)

Explanation:

Half time is period required to desintegrating the half of the initial number of atoms. Then, the total time is:

why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.