Answer:
This demonstrates a simile.
Step-by-step explanation:
A simile is a figurative language that uses comparisons to describe an event, someone, a place, etc., while using the words "as" and "like" to make the comparison, and similes are often used with the purpose of making the writing more colorful and interesting. The statement demonstrates a simile because it compares the way old fears cling to the way cobwebs cling while using the word "like."