Which eruption or volcano type is likely to produce the most violently ejected pyroclastic fragments?

Geography

1 answer:

grin007 [14]2 years ago

6 0

Which eruption or volcano type is likely to produce the most violently ejected pyroclastic fragments?
Stratovolcano

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Most of the time in the atmosphere, the upward-directed pressure gradient force is exceeded by the downward pull of gravity.

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Answer:

Ture

Explanation:

The pressure gradient is the force that is produced due to the rotation of earth pressure cells that creates lighter air to move upwards and heavier to move downwards due to the difference in densities of air.

As the air above consists of lighter elements the oceanic air mostly consist of diatomic molecules of oxygen and nitrogen thus containing a large amount of water vapor, all these molecules have a mass that are pulled down by the gravity and this pull of gravity on columns of gas applies a force what we see an atmospheric pressure.

The gas particles and molecules of heavy and denser matter get stuck at the ground, similarly, as the air cools is descends and warm air rises. Thus upwards and downward motion of air causes convergence and divergence of molecules.

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And mountain ranges

Explanation:

The mid Atlantic ridge shows seafloor spreading and alignment continental such as south America to Africa shows that the continent fit together or the animals dispersed across them. The mountain ranges like the Appalachian or British aisle

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What region is located at 8°N, 81°E? Region D Region C Region B Region A

neonofarm [45]

Answer:

Shanthi Pura, Sri Lanka.

Explanation:

Shanthi Pura in Sri Lanka is the region which is located at 8°N, 81°E. This longitude and latitude readings provides information about the exact location on the earth surface. At 8°North, 81°East on the map of world, Sri Lanka is located which is a small Island in the South Asia, located in the Indian Ocean southwest direction of the Bay of Bengal and southeast direction of the Arabian Sea.

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5. Describe the three types of magma. Include the silica content and explosivity

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Answer:

Basaltic magma -- SiO2 45-55 wt%, high in Fe, Mg, Ca, low in K, Na

Andesitic magma -- SiO2 55-65 wt%, intermediate. in Fe, Mg, Ca, Na, K

Rhyolitic magma -- SiO2 65-75%, low in Fe, Mg, Ca, high in K, Na

Explanation:

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A sector wise profession is defined as a profession that is specific to a particular job sector.

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