What is the name of the most widely accepted theory for the origin of the 5 points Universe? *
The Red Shift Theory
The Big Bang Theory
The Theory for Universe Expansion
O The Milky Way Theory

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.

6.4 cm (max) - 25 cm (min)