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nebula
A Nebula
It is called nebula
Oort cloud
An interstellar cloud made of gas, dust, and plasma in a galaxy.
A superheated incandescent cloud of gas and ash that swiftly travel down the volcano like an avalanche (also known as "the glowing cloud"). Scientifically, they are called pyroclastic flows or pyroclastic density currents.
it is a cloud that comes out of a volcano when there is a eruption
The ash rises because it is in a cloud of hot gas. This cloud is then carried by the wind.
A Plinian occurs when viscous, gas-rich magma erupts from a volcano. The expanding gas makes the eruption highly explosive, generating clouds of gas, ash, and pumice. The turbulent cloud pulls in air from its surroundings. The air is heated and expands, making the ash cloud buoyant and causing it to rise high into the atmosphere.
No. The term ash cloud typically refers to the plume of ash and gas that rises above an erupting volcano. A pyroclastic flow is a denser mass that hugs the ground.
Volcanoes can erupt ash, gas, and pumice in addition to or instead of lava.
It depends on the type of eruption. Some will erupt lava or a mixture of lava and gas. Others will erupt gas, ash, and pumice.
Things that can be erupted include volcanic ash, pumice, solid rock fragments, and gas.
a pyroclastic cloud is a cloud of gas, ash, dust, stones and rocks emitted during a highly explosive volcanic eruption.
The closest match to this is a pyroclastic flow, but it isn't exactly lava: it is a cloud of hot ash, rock, and gas.
Not usually. Pahoehoe refers specifically to a lava flows. These can occur in mildly explosive eruptions, but usually explosive eruptions to not produce lava flows. Instreat they produce clouds of ash with some lapilli and pumice. Pryoclastic flows often result. These are fast-moving avalanches of superheated ash, gas and pumice. These form a kind of volcanic rock called tuff.
a cloud of glowing gas and dust is called a nebula