Length, fluidity and relevance.
A low pitch sound example would be like a crocodile. They can produce sound so low for the human ear to hear. Thunder can also produce exceptionally low pitched sounds that are felt much as they are heard.
Answer:
the description of social media as a casual mechanism.
The explanation that most Egyptians do not use the technology.
Explanation: the author was trying to prove that social media did not play a role mobilizing force for the uprising but was just an information spreading mechanism.
Answer:
The Grimm's first collection of tales was a cultural study intended for a scholarly audience. Hope it helps!!!