universe & solar system section 8 MCQ Questions & Answers Detailed Explanation
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The following question based on Universe, solar system and Astronomy topic of indian geography mcq
Assertion (A):
According to Nova hypothesis, Solar planets were formed because of explosion of Super Nova.
Reason (R):
A star becomes Super Nova in that stage when it has lack of hydrogen element.
Codes:
(a) A is true, but R is false.
(b) A is false, but R is true.
(c) Both A and R are true, but R is not the correct explanation of A.
(d) Both A and R are true and R is the correct explanation of A.
The correct answers to the above question in:
Answer: (c)
According to Nova hypothesis, Solar planets were formed because of explosion of Super Nova. A star becomes Super Nova in that stage when it has lacks hydrogen elements. A supernova happens where there is a change in the core, or center, of a star. A change can occur in two different ways, with both resulting in a supernova.
The first type of supernova happens in binary star systems. Binary stars are two stars that orbit the same point. One of the stars, a carbon-oxygen white dwarf, steals matter from its companion star. Eventually, the white dwarf accumulates too much matter. Having too much matter causes the star to explode, resulting in a supernova. The second type of supernova occurs at the end of a single star’s lifetime. As the star runs out of nuclear fuel, some of its mass flows into its core.
Eventually, the core is so heavy that it cannot withstand its own gravitational force. The core collapses, which results in the giant explosion of a supernova. The sun is a single star, but it does not have enough mass to become a supernova.
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Read more universe solar system astronomy Based Indian Geography Questions and Answers
Question : 1
Oxygen built up in the Earth’s atmosphere because:
a) algae and other organisms employed photosynthesis.
b) oxygen settled on Earth from planets further from the sun.
c) rocks weathered and released their oxygen.
d) the ocean separated from the crust.
Answer »Answer: (a)
Earth’s early atmosphere contained only small amounts of free oxygen, probably produced entirely by the reaction of sunlight with water vapor from volcanoes. The oxygen-rich atmosphere that evolved later, and upon which oxygen-breathing life now depends, was a result of the origin of photosynthesis.
During the Precambrian, vast numbers of single-celled algae and cyanobacteria living in the seas eventually released enough oxygen to transform the environment.
Question : 2
Which of the following statements is correct?
a) Pluto has been given the number 134340
b) All of the above
c) Pluto was discoverd by Clyde Tombaugh in 1930
d) Pluto is not a Planet now
Answer »Answer: (b)
Pluto was discovered by Clyde Tombaugh in 1930. According to International Astronomical Union (IAU) on August 24, 2006, Pluto is considered a dwarf planet. According to the definition, there are currently eight planets and five dwarf planets known in the solar system.
The five dwarf planets are Pluto, Ceres, Eris, Make make and Haumea. Pluto has been given number 134340.
Question : 3
Which planet is called the evening star?
a) Venus
b) Jupiter
c) Mercury
d) Mars
Answer »Answer: (a)
Venus 'overtakes' the Earth every 584 days as it orbits the Sun.
As it does so, it changes from the 'Evening Star', visible after sunset, to the 'Morning Star', visible before sunrise.
Question : 4
The Asteroid belt is found between which of the following?
a) Mars and Jupiter
b) Saturn and Uranus
c) Jupiter and Saturn
d) Earth and Mars
Answer »Answer: (a)
The Asteroid belt is found between Mars and Jupiter. The large majority of known asteroids orbit in the asteroid belt between the orbits of Mars and Jupiter, or are co-orbital with Jupiter.
Question : 5
Hale-Bopp is the name of a
a) International Company
b) Toy
c) Cartoon Character
d) Comet
Answer »Answer: (d)
Question : 6
In which region can the phenomenon of midnight sun be observed?
a) In the Arctic and Antarctic regions
b) Anywhere at the time of solar eclipse
c) In warm temperate regions
d) In the tropical zone
Answer »Answer: (a)
GET Universe, solar system and Astronomy PRACTICE TEST EXERCISES
universe & solar system section 1
universe & solar system section 2
universe & solar system section 3
universe & solar system section 4
universe & solar system section 5
universe & solar system section 6
universe & solar system section 7
universe & solar system section 8
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universe & solar system section 10
universe & solar system section 11
universe & solar system section 12
universe & solar system section 13
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