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General Physical Geography Test 51

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General Physical Geography Test 51
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Water boils at a lower temperature on the hills because _______________.
    Solution
    • The boiling point of water is lower at higher altitudes due to the decreased atmospheric pressure.
    • A liquid boils when its vapour pressure exceeds the local total pressure. At high altitudes the local air pressure is lower than it is at sea level.
    • Thus, the lower pressure allows the liquid to boil at a lower temperature.
  • Question 2
    1 / -0
    Planets' atmosphere is made up of different gases. On which of the following planets methane gas is found in large amounts?
    Solution
    Uranus is made of water, methane, and ammonia fluids above a small rocky center. Its atmosphere is made of hydrogen and helium like Jupiter and Saturn, but it also has methane. The methane makes Uranus blue.
  • Question 3
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    The large dark patches on the Moon's surface are known as ____.
    Solution
    • The surface of the moon is covered in huge dark spots, visible from Earth even with the naked eye. These patches are known as Maria - a Latin word meaning 'seas'. 
    • Maria are huge basins containing lava flows marked by craters, ridges, faults, and straight and meandering valleys called rilles and are devoid of water. They were formed beginning about 3.9 billion years ago during a period of intense bombardment by asteroid-sized bodies. 
  • Question 4
    1 / -0
    The area in which a planet is at the right distance having ideal temperature from a star is known as _________.
    Solution
    A habitable zone (HZ) in astronomy is a region of space where conditions are best for life to form as on Earth. Planets in these areas are the most likely to have extraterrestrial life. The habitable zone may also be called the "life zone", "comfort zone", "green belt" or "Goldilocks zone".
  • Question 5
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    Which of the following might happen if plants stop releasing oxygen into the atmosphere?
    Solution
    • If plants stop releasing oxygen into the atmosphere the ecological balance would be disturbed. Organisms including humans would be affected due to the reduction in the number of oxygen levels. 
    • It also causes genetic mutations and hormonal changes that can affect the reproductive capacity of many organisms.
  • Question 6
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    What is the term given to matter in the middle layer of the Earth which is liquid and hot, and escapes through cracks in the surface?
    Solution
    • Magma is extremely hot liquid and semi-liquid rock located under Earth’s surface. It is a mixture of molten or semi-molten rock, volatiles and solids.
    • Besides molten rock, it may contain suspended crystals and dissolved gases. When magma flows onto Earth’s surface, it is called Lava.
  • Question 7
    1 / -0
    Planet 'X' is cold and dry planet having two satellites- Phobos and Deimos. Its 95% atmosphere is made up of carbon dioxide.
    What is 'X' in the above paragraph?
    Solution
    • Mars is a cold desert world and is half the size of Earth. Mars is sometimes called the Red Planet because of rusty iron in the ground. 
    • Mars has a very thin atmosphere composed mostly of the tiny amount of carbon dioxide (95.3%), nitrogen (2.7%), argon (1.6%) and traces of oxygen (0.15%) and water (0.03%).
  • Question 8
    1 / -0
    'X' is a vent in Earths surface that periodically ejects a column of hot water and steam. The formation of it is a rare phenomenon because it is due to particular hydrogeological conditions which exist at few places on Earth. Taupo volcanic zone in New Zealand is one of its examples. Identify 'X'.
    Solution
    • A geyser is a vent in Earth's surface that periodically ejects a column of hot water and steam. They are a quite rare phenomenon on Earth due to the precise conditions that are required for them to form. They are mainly clustered near active volcanic areas. 
    • The Taupo Volcanic Zone in New Zealand is 350 km long and 50 km wide and contains volcanoes, hot springs and geysers. The largest geyser ever known, the Waimangu Geyser, sat in the Taupo Volcanic Zone.
  • Question 9
    1 / -0
    What is the other name of the galaxy Andromeda ?
    Solution
    Andromeda Galaxy also is known as M31, Messier 31 or NGC 224 and originally the Andromeda Nebula is a spiral galaxy approximately 780 kiloparsecs (2.5 million light-years) from Earth and the nearest major galaxy to the Milky Way.
  • Question 10
    1 / -0
    Shobit observes the moon which looks like as shown in the picture. How long will it be before Shobit sees the moon in the same phase again?

    Solution
    Moon completes one revolution in 29.53 days. Thus each phase of moon repeats after 29.53 days which is aproximately equal to an average standard month.
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