There are two defintions of Crepusclar:
1. Something that resembles or relates to twighlight.
2. An animal active or is appearing in twilight.
Answer:
Claim 2 has to be eliminated
The young rock (mountain) becomes old.
Explanation:
All the mountains of the world are either young (high mountains such as the Himalaya) or old (low mountains such as the Pyrenees mountains). The latter is a low mountain range because time has had its erosive effect.
There is no such thing as minerals going from one rock or mountain to the other because there is only one. And it´s young or (becomes) old.
Answer: (B) nervous of the slight change he can sense.
Explanation: