Huntington's disease is a congenital disorder that is passed from parent to child. a. true b. false

True.

Explanation:  Huntington's disease (HD) is a genetic disease that's passed from parent to child. It attacks the brain, causing unsteady and uncontrollable movements (chorea) in the hands, feet and face. Symptoms get worse over time. They eventually affect walking, talking and swallowing

i'd say that the moon rock is about 2.2 billion years old.