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13 April, 19:08

Which of the following are short term dangers that an explosive volcanic eruption poses on humans and the environment? a) As an explosive volcanic eruption occurs, tephra in varying sizes is thrown up into the air. This cloud of tephra along with lava moves as a pyroclastic flow down the mountain side. Ob) large pieces of tephra falling on people and buildings Oc) the pyroclastic flow burning and burying everything in its path d) All of the above

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  1. 13 April, 20:26
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    Answer: Option (D)

    Explanation: An explosive volcanic eruption can be catastrophic enough and will affect the humans and the environment, thereby causing a great damage.

    An explosive eruption of a volcano is often associated with tephra (hot broken rock particles) of different sizes, which emits a huge amount of gas like sulfur. This tephra and the rapid pyroclastic flow of lava over the slope of the mountain can increase its flow rate, thereby covering extensively over the nearby regions where people lives. This leads to the burning of houses and also people can be killed.

    Thus a violent explosion of a volcano can affect the surrounding atmosphere. Hence, the correct options is (D).
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