<u>Answer:</u>
<em>Rigel and Betelgeuse </em>
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<u>Explanation:</u>
Rigel and Betelgeuse are counted in the brightest stars of the galaxy.
They form a pair in the Orion constellation.
The Rigel star is situated near the Equator. This star is invisible in the region around and above of latitude 82°N and can be seen from any part of the world. It is a blue white giant star. This makes Rigel helpful in navigation.
Betelgeuse is a red giant star which is visible from naked eye. It has the same diameter as that of Jupiter.
<span>In 1911, British explorer Robert Scott and his party died on their return trip from the South Pole. Scott arrived in the </span>South Pole<span> on 17 January 1912, just five weeks after </span>Roald Amundsen<span>'s </span>Norwegian expedition<span>. On their return journey, Scott's party managed to prove that </span><span>Antarctica was once forested and joined to other continents by discovering several fossil plants. He died in 1912 alongside with his party.</span>
Answer:
There are several tectonic provinces collectively called as crystalline providences.
Explanation:
- The geology of Appalachians consists of Blue Ridge, Piedmont, Adirondack, and the New England providences. They are known as Crystalline provinces.
- The sinking of the oceans continued about 270 million year ago due to which a huge mass of rocks was pushed westwards along the margins of North America and piled up to form the mountains.
- The Sierra Nevada is the youngest mountain range on the west coast of the United States.
In April 1927 Guomindang forces, aided by urban gangsters and warlord militia, attacked members of the Chinese Communist Party (CCP) in Shanghai. Hundreds of communists were rounded up, arrested and tortured; most were executed or assassinated. The Shanghai Massacre, or ‘April 12th Incident’ as it is sometimes called, was a pivotal moment in the Chinese Revolution. It triggered a nationwide purge of communists from the Guomindang and several years of anti-communist violence, dubbed the ‘White Terror’. Surviving communists were either forced underground or into rural and provincial areas outside Guomindang control. The events of April 1927 marked the end of the First United Front between the CCP and Guomindang and the end of Soviet Russian support for the Nationalists. The CCP leadership was forced to reassess its revolutionary strategy in the wake of the events in Shanghai.
D. To keep different races and ethnicities separated in order to avoid conflict.
