An element that has an atomic number of 6 and mass number of 12 has
protons.

An element that has an atomic number of 6 and mass number of 12 has __6__ protons

Explanation:

the element having atomic number of 6 and with mass number 12 is carbon , it has 6 protons

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.