-prolonged copper deficiency results in anemia -Copper deficiency= Decrease of WBC, decrease in skin and hair pigmentation, mental retardation might also occur in children -Foods rich in Copper= crab oysters, liver, nuts, seeds, cocoa Zinc
Mauna Kea, HawaiÊ»i, a shield volcano on the Big Island of Hawaii. A shield volcano is a type of volcano usually built almost entirely of fluid magma flows. They are named for their large size and low profile, resembling a warrior's shield lying on the ground.This is caused by the highly fluid lava they erupt, which travels farther than lava erupted from stratovolcanoes.hield volcanoes are distinguished from the three other major volcanic archetypesâ stratovolcanoes, lava domes, and cinder cones âby their structural form, a consequence of their unique magmatic composition.
One of the two most important types of volcanoes, shield volcanoes are large and broad and have relatively gentle slopes. Kilauea on the island of Hawaii is good example of a shield volcano.Eruptions on shield volcanoes are far less explosive than those on composite volcanoes.That is because the basalt lava that erupts from shield volcanoes contains less silica, SiO 2, and is therefore less sticky (less viscous) and doesn't plug up the volcano. shield volcano is a type of volcano usually built almost entirely of fluid magma flows. They are named for their large size and low profile, resembling a warrior's shield lying on the ground.