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How does star blow up ?
A hot bright star blows up when it runs out of fuel.
Here's why that happens. The force of gravity is always puling the matter in the star toward the center. But in that center, small bits of matter called atoms are always fusing together, making bigger atoms and releasing huge amounts of energy. That energy pushes outward and works against the gravity during the star's life. After many millions of years, the star runs out of small atoms. Then it has no more energy to push outward. The star collapses, and when the matter collides in the center, it explodes.
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Why is the keyboard keys not in alphabetical order?
The reason dates back to the time of manual typewriters. When first invented , they had keys arranged in an alphabetical order, but people typed so fast that the mechanical character arms got tangled up. So the keys were randomly positioned to actually slow down typing and prevent key jams.
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Which is the only bird that can fly backwards and forwards?
Hummingbirds are incredible flyers, with the ruby-throated hummingbird beating its wings 80 times every second, an ability that inspired this blog's name. These tiny birds can fly forwards, hover, and are the only known birds to fly backwards as well.
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Who invented the vacuum cleaner?
The motorized vacuum cleaner was invented by Hubert Cecil Booth of England in 1901. As Booth recalled decades later, that year he attended "a demonstration of an American machine by its inventor" at the Empire Music Hall in London.
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What is the river that separates China and North Korea?
From west to east, the Yalu River, Paektu Mountain, and the Tumen River divide the two countries. Dandong, in the Liaoning Province of China, is the largest city on the border. On the other side of the river is the city of Sinuiju in North Pyongan Province, North Korea.
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Someone Hacked my channel
👍we will keep posting our daily questions again
Which country is the largest cutting and polishing of diamonds centre in the world?
Today India is the largest diamond cutting and polishing center in the world. It enjoys 60% value share for diamond cutting and polishing, 85% volume share and 92% share of the world market in terms of number of pieces.
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Why does your hair turn white when you get older?
As we get older, the pigment cells in our hair follicles gradually die. When there are fewer pigment cells in a hair follicle, that strand of hair will no longer contain as much melanin and will become a more transparent color like gray, silver, or white as it grows.
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Why is Greece first in the Olympic parade?
Traditionally (starting at the 1928 Summer Olympics), Greece enters first, because of its historical status as the progenitor of the Olympics, while the host nation marches last. In the 2004 Summer Olympics in Athens, the Greek flag led the parade, while the Greek team marched in last, as the host nation.
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Do male marsupials have a pouch?
In most marsupials, only the females have a pouch. However, males of the water opossum and the extinct tasmanian tiger (or thylacine) also have a pouch. The males of both the thylacine and water opposum used/use their pouch to keep their genitalia from getting entangled in vegetation.
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What countries are included in UK?
The official name of the UK is the "United Kingdom of Great Britain and Northern Ireland". The name refers to the union of what were once four separate nations: England, Scotland, Wales and Ireland (though most of Ireland is now independent). The United Kingdom is made up of: England - The capital is London.
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