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
- Sun is a? (CSS 2011 General Science & Ability Paper)
- Star
- Comet
- Satellite
- Aurora
Submitted by: CSS Exam Desk Team
- Asian Development Bank was established in? (CSS 2011 Current Affairs Paper)
- 1964
- 1966
- 1968
- 1960
Submitted by: CSS Exam Desk Team
- Which office held supreme judicial authority during Mughal rule? (CSS 2009 Pakistan Affairs Paper)
- King
- Qazi-ul-Qazat
- Saddar-us-Sadur
- None of these
Submitted by: CSS Exam Desk Team
- What position Hu Jintao holds in China? (CSS 2009 Current Affairs Paper)
- General Secretary of Communist Party
- President of the Country
- Both a & b
- Prime Minster of the country
Submitted by: CSS Exam Desk Team
- The SYNONYM of the word \"CHRONICLE\" is? (CSS 2011 English Precis & Composition Paper)
- Esteem
- Daily ritual
- Widely- held belief
- Account of events
Submitted by: CSS Exam Desk Team
- Country that once was the colony of UK? (CSS 2017 Current Affairs Paper)
- Thailand
- Burma
- Vietnam
- None of these
Submitted by: CSS Exam Desk Team
- Entomology is the study of? (CSS 2015 General Science & Ability Paper)
- Animals
- Insects
- Plants
- None of these
Submitted by: CSS Exam Desk Team
- Longest Ayah of Holy Quran is in which Surah? (CSS 2016 Islamic Studies Paper)
- Al-Ma’arij (the Elevated Passages)
- Al-Haqqah (the Inevitable)
- Al-Baqarah (the Cow)
- At-Takwir (the Overthrowing)
Submitted by: CSS Exam Desk Team
- Who was the first man to embrace Islam on the eve Of Fatah-e-Makkah? (CSS 2020 Islamic Studies Paper)
- Abu Sufyan
- Abul Basheer
- Amr bin Saleem
- Utba (Abul Baseer)
Submitted by: CSS Exam Desk Team
- Pakistan’s first communications satellite, the PakSat-1R, was launched in? (CSS 2016 Current Affairs Paper)
- April 2010
- January 2012
- August 2011
- None of these
Submitted by: CSS Exam Desk Team
- The story of the accusation of adultery levied against Hazrat Aisha (RA), known as the event of Ifk, can also be traced in? (CSS 2021 Islamic Studies Paper)
- Surah 24. An-Nur (the Light)
- Surah 28. Al-Qasas (the Stories)
- Surah 40. Ghafar (the Forgiver)
- Surah 48. Al-Fat’h (the Victory)
Submitted by: CSS Exam Desk Team
- Richest source of Riboflavin is? (CSS 2016 General Science & Ability Paper)
- Papaya
- Mango
- Bael
- karonda
Submitted by: CSS Exam Desk Team
- If the radius of a circle is increased three times then its area is increased? (CSS 2024 General Science & Ability Paper)
- Three times
- Six times
- Nine times
- None of these
Submitted by: CSS Exam Desk Team
- Equator passes through one of these countries? (CSS 2013 General Science & Ability Paper)
- Italy
- Japan
- Saudi Arabia
- None of these
Submitted by: CSS Exam Desk Team
- Hazrat Maria Qibtia (رضی اللّٰہ عنہ) belongs to ?
- Iran
- Alexandria, Egypt
- Syria
- None of these
Submitted by: CSS Exam Desk Team
- In which year the Taliban Office open in Qatar? (CSS 2018 Current Affairs Paper)
- 2003
- 2010
- 2013
- None of the above.
Submitted by: CSS Exam Desk Team
- The SYNONYM of the word \"ARCHIPELAGO\" is? (CSS 2004 English Precis & Composition Paper)
- Reef
- Lagoon
- Glacier
- Cluster of islands
Submitted by: CSS Exam Desk Team
- Whose behaviour disheartened M.A. Jinnah and decided to stay away from India? (CSS 2023 Special Pakistan Affairs Paper)
- M. K Gandhi
- Sardar Patel
- Jawahar Lal Nehru
- None of these
Submitted by: CSS Exam Desk Team
- The SYNONYM of the word \"MISOPEDIA\" is? (CSS 2011 English Precis & Composition Paper)
- Wholesome
- Middle age
- Family history
- A hatred for children
Submitted by: CSS Exam Desk Team
- The SYNONYM of the word \"DEIGN\" is? (CSS 2013 English Precis & Composition Paper)
- Refuse
- Pretend
- Disparage
- Condescend
Submitted by: CSS Exam Desk Team
- How many people were there in the second migration to Abyssinia (Habshah)? (CSS 2023 Islamic Studies Paper)
- 101 people
- 121 people
- 130 people
- 141 people
Submitted by: CSS Exam Desk Team
- which two prayers are emphasized? (CSS 2020 Islamic Studies Paper)
- Fajar and zuhr
- Fajar and asr
- Asr and isha
- None of these
Submitted by: CSS Exam Desk Team
- A person standing in front of a mirror finds his image smaller than him and erect. This implies that the mirror is? (CSS 2014 General Science & Ability Paper)
- Plane
- Concave
- Convex
- Not of good quality
Submitted by: CSS Exam Desk Team
- The effective Zakat System can ensure the elimination of?
- Poverty
- Interest
- Class Distinction
- None of these
Submitted by: CSS Exam Desk Team
- Pakistan\'s largest man-made forest is? (PPSC English Lecturer/ Instructor Test, June 6, 2024)
- Takht Pari Forest
- Changa Manga Forest
- Ziarat Juniper Forest
- Chichawatni Forest
Submitted by: CSS Exam Desk Team