1/9=0.11111111 (and so on) so that would be the answer
The gerund in this sentence is "learning". A gerund is a verb form which is acting as a noun, in this case after the preposition "in".
Answer:It surrounds the spinal cord
Explanation: The back bone in animals typically starts at the neck and travels down to the pelvic area, surrounding the spinal cord to protect it from any harm.