The answer is seafloor spreading and subduction.
Hope this ain't too late (this is the PLATO answer)
D
The amount of material that has not decayed
The answer is D. after independence
Hello There! ^_^
Your question: Which European landform is less than 500 feet above sea level..?
Your answer: The Northern European Plain is the landform that is less than 500 feet above sea level.
The answer is option D.
Happy Studying!
