The correct answer is - c. east.
The Appalachian Mountains are located in the eastern part of the United States, and since the Rocky Mountains are in the western part of the country, it puts them east of the Rocky Mountains.
The Appalachians are a very old mountain range, they are dated to about 480 million years ago when they formed during the Ordovician Period. At their peak, these mountains reached heights similar to the Rocky Mountains and the Alps in Europe, but because of the natural erosion they have shrunk and nowadays are much smaller in height.
1. lifeless
2. evaporation
3. seeps into
4. surface, pycnocline, deep
5. food web
6. photic
The answer for your question this the first one witch is (A)
B is the answer hope this helps
You could name it two ways! You can either do IH or HI. Since there are only two letters, you can only rearrange or name IH 2 different times.
Hope this helps :)