What happens immediately before a volcano erupts?

Answers

Answer 1

Answer: Well, the cause of a volcanic eruption is when the lower crust melts. This leads to the formation of magma. The volcano is an opening through which the magma is discharged. The rock inside the earth melts. This magma is diffused upwards through the volcano. If magma reaches the top of the volcano, it behaviour depends on viscosity. So what happens before a volcanic eruption is that the lower crust melts, causing the formation of magma, which is released through the volcano. Hope i helped.

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Use 'organic matter' in a sentence (Does not have to be complex)

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rganic matter or organic material, natural organic matter, NOM is matter composed ofor ganic compounds that has come from the remains of organisms such as plants and animals and their waste products in the environment.

i want to see the amount of time i am given will affect the number of jumping jack i can complete.i need the CER=Explanation

Answers

To see the amount of time and if it will affect the number of jumping jacks you can complete try setting a timer and see how much you do in the amount of time you gave yourself

Which of the following is formed at a collision zone?Continental rift valleyVolcanic island chainMountain rangeDeep-ocean trench

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all these landforms can be found at collision zones. they depend on which type of collision, though. there are oceanic-oceanic collision, oceanic-continental collisions, and continental-oceanic collisions. oceanic plates are dense and small, and continental plates are massive, but heavy. i hope this answer helped you.

Which are always the first waves of an earthquake to be detected?