Why are people often surprised when a volcano erupts?

The volcanic island Whakaari / White Island in New Zealand's northeastern Bay of Plenty region explosively erupted on 9 December 2019 at 14:11 NZDT (01:11 UTC). ... Experts identified the event as a phreatic eruption: a release of steam and volcanic gases that caused an explosion, launching rock and ash into the air.

Explanation:

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The volcanic island Whakaari / White Island in New Zealand's northeastern Bay of Plenty region explosively erupted on 9 December 2019 at 14:11 NZDT (01:11 UTC). ... Experts identified the event as a phreatic eruption: a release of steam and volcanic gases that caused an explosion, launching rock and ash into the air.

letter a is the answer

superior technology and improved medical knowledge to foster imperialism. quinine enabled europeans

to survive tropical diseases and venture into the mosquito-infested interiors of africa and asia. the combination

of the steamboat and the telegraph enabled the western powers to increase their mobility and to quickly respond

to any situations that threatened their dominance. the rapid-fire machine gun also gave them a military advantage

and was in convincing africans and asians to accept western control. the following table summarizes the

causes of the new imperialism:

causes of new imperialism

economic military/political humanitarian/religious technological

need for markets need for military bases white man’s burden new medicine

raw materials national security spread of christianity new weapons

source of investments source of

pride—nationalism

social darwinism

(superiority of western

society)

transportation

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