The Gambia has no migrating wildebeest, giraffes or any of the large animals commonly associated with Africa. However without leaving your hotel you can see a breathtaking variety of bird life, in addition to monkeys and lizards. Baboons and crocodiles can be seen nearby and then far up the river, hippos.
As the gasses collect in the magma chamber, the pressure rises. It is possible for the pressure to rise so much that the chamber cannot contain the magma and it erupts explosively. Some US Parks that have active volcanoes formed as the result of subduction related processes are: 1  Crater Lake National Park, OR.
Magma ascends up and erupts on the surface as lava in the area that the plates separate. Due to this reason, volcanoes are often found along plate edges. These areas include: the Pacific plate, North and South America, Japan and the Philippines. Sometimes volcanoes can form in the middle of a plate like Hawaii.