"abnormal" means "not normal" - so it can mean "not standard" -therefore if someone is developing at a different rate than most of the people you could say that they are not developing in a standard way - so you could say that they are developing abnormally. The sentence is correct, although it might not be the best word to use.
Good citizenship is basically just being a good person; you can be a good citizen by showing respect, having a positive attitude, or showing responsibility and being honest.
Examples of good citizenship could include volunteering at a local animal shelter or homeless shelter; donating unused books, toys, or clothes; picking up trash in your community, or simply respecting and following the law.
Answer:The spinal canal is a tunnel that houses the spinal cord and nerves, protecting them from injury.
Explanation: