0
What is the name given to the area where volcanoes often occur because convection in the earths mantle produces a column of magma that rises into the crust?
Wiki User
∙ 6y ago
hotspots
Neha Leffler
Wiki User
∙ 9y agoreef
Add your answer:
Earn +20 pts
What is the most common VEI for volcanoes in Hawaii?
0 to 1, 0 being more common than 1. The reason is that Hawaiian volcanoes aren't very explosive. They produce a lot of lava, but with a continuous flow. VEI index measures explosiveness, with indicators for eruption column height and volume of pyroclastic material produced. Both factors are low for Hawaiian volcanoes.
Is it true that the pressure of a column of air at sea level as it becomes cooler and subsequently became denser it would be heavier?
This is tricky because it depends what you're holding constant, i.e., what you mean by "column of air" When air cools, it becomes denser because it compresses - this assumes no change in mass (or amount) of air. If you're talking about a discrete column of air that does not change in mass, then cooling it would cause to to compress and become denser because the volume is less (density = mass/volume). The pressure would remain the same because there is the same amount of air. If you want to change the amount of air in the column as fluid dynamics would demand, then you'd be holding volume constant. So the column would cool, compress, and more air would move in to fill the spot left by its compression. So the column would increase in mass as well as density and pressure.
What is a plume and how does it cause plate movement?
In the context of plate tectonics, a plume is a column of very hot magma, much hotter than the usual temperature of the mantle, that rises through the cooler magma because the heat causes it to expand and therefore to be less dense. When the rising magma reaches the crust, it exerts force on the crust and contributes to continental drift. It can also cause volcanoes. The Hawaiian chain is an example of islands that were produced by volcanoes that were all caused by the same plume. As the crustal plate moves, the plume strikes different parts of the crust.
Why does each period in the periodic table end with a noble gas?
Because noble gases are in the last column
Why is calcium and barium are shown in the same vertical column?
because they are both alkaline earth metals i think
What name is given to the area where volcanoes often occurs because convection in the earths mantle produces a column of magma that rises into the crust?
hotspots
What name is often given to the area where volcanoes often occur because convection in the earth's mantle produces a column of magma that rises into the crust?
hotspots
What is the height of water column produces the same pressure as a 760mm high column of Mercury?
Atm
How does the length of an air column affect pitch?
A short air column produces a shrill note of higher pitch than a longer air column.
What is the classification for an instrument that produces sound by the vibration of a column of air?
Aerophone
What is the classification for an instrument that produces sound by the vibration of a column of air.?
An instrument which produces sound by the vibration of a column of air is called an aerophone. Examples are brass and woodwind instruments, as well as things like bull roarers.
Why touching the toes from a standing position produces more stress on the lower spinal column than when touching the toes while seated on the floor with outstretched legs?
because u r in a differebt position.
What is the value of the 6 in the number 36 825?
The 5 is a unitThe 2 has the value of 20 (because it is in the tens column)The 8 has the value of 800 (because it is in the hundreds column)The 6 has the value of 6000 (because it is in the thousands column)The 3 has the value of 30000 (because it is in the tens of thousands column)
Rising air is called what?
Convection. Convection is the process where a fluid (liquid or gas) moves and transports heat due to hotter fluid rising and cooler fluid sinking due to differences in density.
What is a tapered column?
a column that has hade a gradual decrease in thickness because of weather or age.
Why touching the toes while seated on the floor with outstretched legs produces less stress on the lower spinal column than when touching the toes from a standing position?
Because when standing up and bending over to touch your toes gravity is pushing down directly upon your lower spinal column, and less stress is placed upon your lower spinal column when you are at the lowest possible point on the floor. I hope i helped!
What is the most common VEI for volcanoes in Hawaii?
0 to 1, 0 being more common than 1. The reason is that Hawaiian volcanoes aren't very explosive. They produce a lot of lava, but with a continuous flow. VEI index measures explosiveness, with indicators for eruption column height and volume of pyroclastic material produced. Both factors are low for Hawaiian volcanoes.
