Answer:
the annexation of Hawaii in 1898, which allowed the United states to gain possession and control of all ports, buildings, harbors, military equipment and public property
yes
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Can you post the statements in the comments please lol
love to help but this is incomplete! :)
The melting temperature of materials is affected by the pressure they are under. So when "rock" in the Earth's mantle experiences a decrease in confining pressure, not only does it expand, it's melting temperature drops. If the melting temperature of the material drops below the background (also known as the
in-situ
) temperature, then melting will occur and in this case magma will form.