The child contains or is able to recieve both type a and b. the child obtained this from her parents.
NOT EXACT DEFINITION: Diseases that can be passed from one living organism to the other. Two examples are flu and several STIs (such as herpes). Sorry I couldn’t think of any more :)
Short Answer: When the sea is really deep and have a crazy waves around it.
I don't know a lot about volcanos, but I can help you with the formatting
