In asteroid belt between the orbits of Mars and Jupiter.
In asteroid belt between the orbits of Mars and Venus.
In asteroid belt between the orbits of Jupiter and Venus.
Everywhere in the sky
- Asteroids are remnants of planetary formation that failed to coalesce because of the gravitational interference of Jupiter. They circle the Sun in a zone lying between Mars and Jupiter. The circular chain of asteroids is called the asteroid belt. It lies between 2.3 and 3.3 AU from the Sun.
- Asteroids (planetoids ― another term for an asteroid) are composed mainly of refractory rocky and metallic minerals, with some ice. They range in size from hundreds of kilometres across to microscopic.
- Ceres (2.77 AU) is the largest asteroid (946 km in diameter), a protoplanet, and a dwarf planet. It has a mass large enough for its own gravity to pull it into a spherical shape. All asteroids, except Ceres, are classified as small Solar System bodies.
- Comets are icy frozen gases (water, ammonia, methane and carbon dioxide) which hold together small pieces of rocky and metallic minerals. They have highly elliptical orbits, unlike the planets which have near-circular orbits.
- Short-period comets, with an orbital period of a few hundred years, originate in the Kuiper belt. Longer period comets, with orbits of thousands of years, come from the more distant Oort Cloud.
- Oort cloud is a giant shell of icy bodies that encircle the solar system occupying space at a distance between 5,000 and 100,000 AU
- When passing close to the Sun, comets heat up due to the effects of the solar wind upon the nucleus and begins to outgas, displaying a visible atmosphere or coma, and sometimes also a tail.
- One of the larger comets is Halley’s Comet. The orbit of Halley’s Comet brings it close to the Earth every 76 years. It last visited in 1986.
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Related MCQs
- A very important practical application of properties of matter is hoeing or “godi” practiced by the farmers. This property of matter is called? (CSS 2010 General Science & Ability Paper)
- Strain
- Stress
- Elasticity
- Capillarity
Submitted by: CSS Exam Desk Team
- United States bombed on Hiroshima? (CSS 2017 Current Affairs Paper)
- August 11, 1945
- August 6, 1945
- August 9, 1945
- None of these
Submitted by: CSS Exam Desk Team
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- 1919
- 1920
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- Makah
- Desert of Sinai
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- None of these
Submitted by: CSS Exam Desk Team
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- National Assembly
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- Both of these options
- None of these options
Submitted by: CSS Exam Desk Team
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- ALU
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- Logical instruction
Submitted by: CSS Exam Desk Team
- In a fission nuclear reaction, a heavy nucleus breaks up into smaller nuclei whereas in another nuclear reaction two or more than two possibly nuclei are fused to form a heavy nucleus. This nuclear reaction is called? (CSS 2010 General Science & Ability Paper)
- Nuclear Reaction
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Submitted by: CSS Exam Desk Team
- The ozone layer is present about 30 miles (50 km) in atmosphere above the Earth. The stratum (layer) of atmosphere in which ozone layer lies is called as? (CSS 2011 General Science & Ability Paper)
- Exosphere
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Submitted by: CSS Exam Desk Team
- Optical fiber operates on the principle of? (CSS 2014 General Science & Ability Paper)
- Tyndall effect
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- Laser technology
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Submitted by: CSS Exam Desk Team
- when nadva-tul-ulema came into being?
- 1873
- 1883
- 1894
- none of these
Submitted by: CSS Exam Desk Team
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- Message fro Angels
- Message from Prophets
- Revelation
- None of these
Submitted by: CSS Exam Desk Team
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- Uzbeks
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- Tajiks
- None of these
Submitted by: CSS Exam Desk Team
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- 10th Nabvi
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- 12th Nabavi
- None of these
Submitted by: CSS Exam Desk Team
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- 1892
- 1890
- 1890
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Submitted by: CSS Exam Desk Team
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- Pacific Ocean
- Atlantic Ocean
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- None of these
Submitted by: CSS Exam Desk Team
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- Al Nehal
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- al-Muqawqis
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Submitted by: CSS Exam Desk Team
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- Umara Bin Utba (رضی اللّٰہ عنہ)
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- Sucrose
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Submitted by: CSS Exam Desk Team
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- Badr
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- None of these
Submitted by: CSS Exam Desk Team
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- Hazrat Shoiab (علیہ السّلام)
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- None of these
Submitted by: CSS Exam Desk Team
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- Mass
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Submitted by: CSS Exam Desk Team
- It is observed that the total pressure exerted by air on the man of average size is around 14.7 lb. weight per square inch. But the man feels quite comfortable, it is because? (CSS 2010 General Science & Ability Paper)
- An equal and opposite pressure acts from inside
- of the height of a man
- of gravity
- Earth pulls the man upward
Submitted by: CSS Exam Desk Team
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- 18g
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Submitted by: CSS Exam Desk Team
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- 2
- 3
- 4
- None of these
Submitted by: CSS Exam Desk Team