A volcanic phenomenon that involves hot, high density mixture of rock fragments, ash and expanding gases is called
Pyroclastic flow
Explosive volcanic eruptions eject fragmented material called pyroclasts (tephra: ash, lapilli, bombs) along with hot gases.
When the eruption column collapses or a lava dome fails, a hot (often 200–700 °C), dense, ground-hugging mixture of rock fragments, ash and expanding gases rushes down the volcano’s slopes at high speed. This is a pyroclastic flow (also called nuée ardente), as seen at Mount Pelée in 1902 and Vesuvius in 79 AD.
An avalanche is a rapid slide of snow, ice or debris down a slope; a slump is a rotational mass movement of a coherent block of material; ash fall is tephra settling out of the air from an eruption plume rather than a dense flow moving along the ground.
Hence, the answer is Pyroclastic flow.
Similar Questions
What is the Bharat Stage (BS) emission standard applicable for petrol and diesel vehicle in India as of 2023 ?
In Remote Sensing, the places where energy (wavelength) passes with limited or no absorption is called _____
The United Nations sustainable development goal 6 aims to :
Tropical deciduous forests are also known as :
Which natural source contributes significantly to the release of sulfur dioxide (SO2) into atmosphere ?
The instrument used to measure wind speed is called :
The stratosphere is characterized by a temperature profile that :
Which phenomenon explains that when a species becomes extinct, the plant and animal species also become extinct that are obligatory associated with the host species ?
Which instrument is commonly used to measure atmospheric pressure ?
Which property represents the amount of heat required to raise the temperature of a unit mass of a substance by one degree celsius ?
Important Questions from Mixed Topic (MH-SET)
.................... is a client server application that identifies each host on the internet with a unique user-friendly name.
Every OS has a ................ or .......... which primarily resides in the main memory of the computer to perform some of the basic functions of the OS.
(i) Kernel
(ii) Interface
(iii) Nucleus
(iv) Compiler
Codes:
Which of the following are referred to as low level language?
(i) Machine language
(ii) Assembly language
(iii) High level language
(iv) Natural language
Codes:
Match the following:
List I List II (a) New York Public Library (i) Shelv AR (b) Miami University Augmented Research Group (ii) Smart library (c) Oula University Library (iii) Wolf Walk (d) North Carolina State University (iv) Find the future Codes:
Which part of the QR code represents the encoded data?
