Explosions from composite volcanoes occur as a result of gas buildup within them. Shield volcanoes also may erupt explosively if water accumulates inside their vents.
lava with a higher content of <em>silica</em><em> </em>has higher viscosity
The volcano can collapse and form a <em>caldera</em>
shield volcanoes can form when less <em>viscous</em> lava flows quickly away from a vent
During an oceanic plate convergence, the <em>denser</em> plate will sink
The west coast of the united state has features formed by <em>subduction</em>
During the <em>divergence </em>of two tectonic plates, magma wills the space between two tectonic plates
The only volcanic activity that is not formed at tectonic plate boundaries is <em>hot spots</em><em> </em>and volcanoes are linked severe weather events
The response to all these is earthquakes
9. An explosive eruption is a very violent type of volcanic eruption and can be caused when enough gas has dissolved under pressure in a viscous magma in a way that when the lava is expelled it froths into volcanic ash when pressure is low at its vent
Explanation:
An explosive eruption is a very violent type of volcanic eruption and can be caused when enough gas has dissolved under pressure in a viscous magma in a way that when the lava is expelled it froths into volcanic ash when pressure is low at its vent
Answer:If the temperature is high, the body sweats in order to cool down. Since the process of sweating is done to stop the temperature change, this is a negative feedback. Feedback loops come in two flavors: positive and negative. A negative feedback loop reduces the effect of change and helps maintain balance.
Upwelling is a process of the winds that drives away the warm water from the surface and bring up the cold and dense water from below.
Obliquity is the nature of the axial tilt of the earth i.e 23.5 ° Due to the equator bulge and other properties of the earth.
The thermohaline circulation is the global circulation of the waster that is created by the gradient flow of the surface heat and the freshwater influxes.
Milankovitch cycles are the effect of the changes in the earth's movements in climatic patterns over a thousands of years period.
Eccentricity is the orbital rotation of the earth around the sun on its axis and has more of a circular elliptical path.
The precession is the change in the orientation of the axial tilt of the planet in reference to the rotating body.
Geostrophic wind D) flows parallel to contour lines of upper-air pressure .
Explanation:
Geostrophic wind -
Air parcel generally moves from higher pressure to lower pressure due to pressure gradient force and left or right deflection due to coriolis force. When this deflection takes place a time comes when pressure gradient force and coriolis force becomes equal and the air parcel moves parallel to isobar then the winds are called geostrophic winds .
