Krakatoa
Volcanic eruption has been a constant threat to our natural environment for millions of years, but seldom in
recent times (21) a volcano erupted with the ferocity of Krakatoa.
Krakatoa, (22) is a volcanic island group in Indonesia, erupted on 27th August 1883.
(23) only was the explosion (24) loud that it was heard as far away
(more than 3,000 km) as Perth in Australia, but it is also recognised as (25) the loudest
sound (26) recorded.
Tens of thousands of people in the region were killed, many (27) in the enormous
tsunamis which the eruption produced - tsunamis which eventually reached South Africa and the
English Channel.
The explosion also had a major effect on the (28) world's weather system. The volcanic
dust in the atmosphere reduced the (29) of sunlight reaching the earth's surface,
reducing global temperatures by more than one degree centigrade. Only after five years had passed
(30) global temperatures begin to return to normal.
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