What should be changed to make the following sentence true? children with fasd may have a large head size and abnormal facial features, poor judgment, poor impulse control, higher rates of adhd, learning issues, and lower iq scores.

I would express it in the following way:

Children with FASD may present as symptoms small head size and abnormal facial features, poor judgment , poor impulse control, higher ADHD rates, learning problems and lower IQ scores.

Children do not necessarily have these symptoms. Many times, a person does not show signs of a disability, but actually has brain problems that can cause a los of frustation in school and family.

hello,

answer: a federal government has final authority on interstate/inter provincial  and international affairs, a confederation is one where the central/national government or authority is governing body what does not have final say over the same matters. hopefully this and i will try again if you don't like this answer : )

best of luck!