Why doesn't the earth, s shadow get cast onto the moon every month ?

the answer to your question is c.

if you read the house of usher you should know that the house was haunted

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.