Practice PPSC General Knowledge questions with answers and explanations.
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Platelets gather at damaged blood vessels and help form clots.
This reduces blood loss after injury.
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The kidneys filter the blood and regulate water and salts.
Their waste product is excreted as urine.
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Alexander the Great conquered territories from Greece to parts of South Asia.
His campaigns spread Hellenistic culture.
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The Second World War began in Europe in September 1939.
Germany's invasion of Poland triggered declarations of war.
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Pompeii was buried under volcanic ash from Mount Vesuvius.
Its remains preserve much information about Roman life.
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The League of Nations was established after the First World War.
It was later replaced by the United Nations.
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Constantinople served as the capital of the Byzantine Empire.
The city is now known as Istanbul.
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The Berlin Wall opened in November 1989.
Its fall became a symbol of the end of Cold War divisions in Europe.
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Ottoman Sultan Mehmed II captured Constantinople in 1453.
The event ended the Byzantine Empire.
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Christopher Columbus reached islands in the Caribbean in 1492.
His voyage connected Europe and the Americas on a sustained basis.
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Genghis Khan united Mongol tribes and founded the Mongol Empire.
It later became the largest contiguous land empire.
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Vasco da Gama reached India by sea in 1498.
He sailed around the southern tip of Africa.
