Which family has elements with a full octet of valence electrons? 1.) The alkali metals (group 1A)?
2.) The halogens (group 7A)?
3.) The noble gases (group 8A)?
4.) The alkaline earth metals (group 2A)?

i think it is d. e because the next one is igneous.

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.

your answer is c) plasma

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