With a class one lever, calculate the work done to move it 25cm

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.

i think the answer is terrae but not 100 percent sure. ▓▬▬ §