What do you call a vally in the ocean?

What are some consumers in the temperate rain forest? Why these explorers made these voyage across the Atlantic Ocean? Is it good or bad when the Mississippi river floods? During what years was Alkatraz operational as a prison? Temperature range in a temperate forest? Who called cochi as Queen of the Arabian Sea? What are possible temperatures for a surface current? What does one long blast followed by one short blast signal to a river lock attendant? Do eucalyptus trees grow in rainforests? How do you ask people to let you cut their grass for money? Does a bridge have to be wet to freeze? Is the LA zoo bigger than San Diego zoo? How did wagons cross over streams and rivers? Why does the floor of a temperate deciduous forest have more small plants than the floor of a coniferous forest? Is Northwest Passage the correct answer for Waterway connecting the Atlantic and Pacific Oceans? What are the speed limits in new forest national park? What is the dome of Hagia Sophia supported by? Who is the father of san roque? What sea does the Nile River empty into? What nonliving things are found in blue ridge mountains?