Letter B- Alaska because of the weather
The Appalachians are the surrounding landscape near the Atlantic coast and known to be the highest peaks in Canada.
The two biggest aspects of the global climate change that impact the forests are the temperature and the precipitation. The temperature increases globally, this affects the forests because the trees are adapted on certain temperatures, but now are faced with rapid increase of the same, and the time for adaptation is much shortened, so lots of forests degrade or gradually die off. The precipitation is a crucial factor for all plants. The forests are on places where there's sufficient amount of precipitation, but now lots of regions in the world are suffering from reduced precipitation, this also causes the degrading and dying off of the forests.
jeez.., the atmosphere would be the same shape and size as the whole planet ! Cause with how many ppl live here on earth that takes up the earth already!...people....cause think ppl say there are a total of 7 billion ppl or more .. so making the earth a four story building ? it would be the same shape and size what the earth is now ... hoped this helped enough