Study HubHubPage 1/2Scan verified MCQs with the answer highlighted, then open explanations when you want the reasoning.
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Earth's internal structure
The boundary between the mantle and the core lies at a depth of approximately ________.
The boundary between the Earth's mantle and core, known as the core-mantle boundary or the Gutenberg discontinuity, lies at approximately 2,900 to 3,000 kilometers depth. Therefore, option D (3000 kilometers) is correct.
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National symbols
When was the National Anthem of Pakistan played for the first time?
The National Anthem of Pakistan was first played publicly on 13th August 1954, making option A correct. This date is historically significant as it marked the anthem's debut before Pakistan's Independence Day on 14th August.
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Deserts (Dasht-e-Lut)
Dasht-e-Lut desert is located in which country?
The Dasht-e-Lut desert is located in Iran. It is one of the hottest and driest places on Earth, known for its unique geological features.
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Noble gases
Which gas is most commonly used in neon signs?
Neon gas is most commonly used in neon signs because it emits a distinct bright red-orange light when an electric current passes through it, making it ideal for colorful lighting displays.
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Pedology (study of soils)
Pedology is the study of?
Pedology is the scientific study of soils, including their formation, classification, and mapping. Therefore, the correct answer is 'Soils'.
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Planetary Science
Which planet is known for its beautiful rings?
Saturn is famously known for its prominent and beautiful ring system, which is the most extensive and visible among the planets in our solar system. Jupiter and Uranus also have rings, but they are faint and less noticeable.
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User Interface
The _________ displays the name of every computer user on the computer.
The welcome screen in most operating systems displays the names of all user accounts available on the computer, allowing users to select their profile to log in. This matches option B, making it the correct answer.
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HTML tags
Which tag is used to underline text in HTML?
The correct HTML tag to underline text is <u>. Since none of the given options (B, C, D) represent the <u> tag, the correct answer is 'None of these'.
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Antonyms
What is the antonym of 'drought'?
The antonym of 'drought' (a prolonged period of dryness) is 'surplus', which implies an excess or abundance, often of water or resources. The other options do not represent opposites of drought.
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Quranic Studies
How many surahs are named after Prophets in the Quran?
There are exactly 6 Surahs in the Quran named after Prophets: Surah Muhammad(PBUH), Surah Yunus, Surah Hud, Surah Yusuf, Surah Ibrahim and Surah Nuh.