Sand can be trucked in from other sources and filtered for sediments to eventually make way into the air and water. They can also build seawalls, revetments, and jetties along the shoreline. :)
Liberia.
It comes from the Latin word liber which means free and Liberia is a country in West Africa.
D. Obviously because it was large and they didn't have a lot of supplies to go across also it was very deep.
Hawaiian volcanoes- Hualalai, Mauna Loa and Maune Kea.
