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suter [353]
3 years ago
10

Explain why silica-rich magma and magma that contains gas erupt explosively.

Geography
2 answers:
Dmitry [639]3 years ago
8 0
Silica-rich magma traps water and gas bubbles together which causes huge amount of pressure in the magma.

I found this on answers.com, "Silica-rich magma erupts by creating a high viscous magma, which result into releasing high pressurized gases, that cause eruption."
Sphinxa [80]3 years ago
6 0
Silica-rich magma traps water and gas bubbles together which causes huge amount of pressure in the magma.
Resources:
"Silica-rich magma erupts by creating a high viscous magma, which result into releasing high pressurized gases, that cause eruption."
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Explanation:

The Rust Belt is an area, or rather informal region in the United States. It has nothing to do with the climate characteristics of the area, but it got its name because of the drastic decline of the industry. This ''region'' is not only occupying territory in the northern Midwest, but it stretches as east as New York, and as west as Wisconsin.

Staring from the 80's, a belt like area along the northern part of the United States started to have sharp decline in its industry. The once powerful industrial centers suffered greatly, as the decline of the industry had major impact on the economy, lot of population moved out, and the places stagnated or even degraded. The most affected area was the Great Lakes region. The states where the ''Rust Belt'' goes through are:

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How might the absolute age of an igneous rock layer help scientists to determine the ages of nearby sedimentary rock layers?
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