The lower mantle is composed of magnesium, iron-bearing silicates, olvine, and pyroxene.
Answer:
he became the first European mariner to round the southern tip of Africa, opening the way for a sea route from Europe to Asia. A major maritime victory for Portugal, Dias' breakthrough opened the door to increased trade with India and other Asian powers.
Answer:
b) Magma B
Explanation:
The magma that forms a basalt plateau or a shield volcano is a mafic (basaltic) magma. This magma is low in viscosity, making it very liquid, so when there's an eruption there's lava flows coming down the slopes like rivers, moving relatively fast. This type of magma has low content of silica, which is the reason why it is low in viscosity. The low viscosity also contributes to very small amount of gases in the magma, as the gases can escape from it very easily so they do not come in a situation to be trapped. The low amount of gases means that the volcanoes with this type of magma have calm eruptions, and explosive eruptions are either nonexistent, or extremely rare.
Answer: Migrants have contributed to the development and expansion of small businesses, which are the cornerstone for the Australian economy. They have contributed to the development of technology bringing to the country cutting edge technology in particular from Asia and Eastern Europe.
Explanation: i hope this helps :)
I believe it is c I researched all of them and the most convenient is gothic architecture
