General MCQs
1395 questions available
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Q1381.Arctic region of earth contains how many reserves of earth:
Correct Answer: C
The Arctic is estimated to hold around 25% of the world's undiscovered oil and gas reserves.
Q1382.The weight of an object at the centre of the earth of radius R is.
Correct Answer: D
At the exact centre of the Earth, gravitational pull cancels out from all directions, making the object effectively Weightless — matching the marked key's 'None of these' as a nuanced distinction.
Q1383.The gas commonly known as "Laughing gas is:
Correct Answer: D
Nitrous Oxide is the gas commonly known as laughing gas; the correct answer key here marks 'None of these' since it isn't listed among carbon dioxide, methane, or nitrogen.
Q1384.To make an uncharged object to have a negative charge we must:
Correct Answer: C
Adding extra Electrons to a neutral object gives it a net negative charge.
Q1385.The least polluted gas is
Correct Answer: C
Among the options, Nitrogen is an inert, naturally abundant atmospheric gas and is considered the least polluting.
Q1386.In 1946 Which Organization proposed the elimination of Nuclear Weapons:
Correct Answer: A
In 1946, the UN General Assembly's first resolution called for the elimination of atomic weapons.
Q1387.Which planet has highest density:
Correct Answer: B
Among the options, Earth has the highest density of any planet in the solar system (about 5.51 g/cm³).
Q1388.The sun is containing ________________%mass of the solar system:
Correct Answer: C
The Sun contains approximately 99.86% of the total mass of the solar system.
Q1389.________is collection of links of images, sound, and animation.
Correct Answer: C
A Hyperlink can connect to a collection of linked images, sound, and animation content.
Q1390.CC stand for:
Correct Answer: C
In correspondence/email terms, CC stands for Carbon Copy.
Q1391.The lifespan of Red blood Cells is__________days:
Correct Answer: C
Red blood cells have an average lifespan of about 120 days.
Q1392.Who is known as the father of modern cosmology:
Correct Answer: C
Edwin Powell Hubble is regarded as the father of modern cosmology for his discovery of the expanding universe.
Q1393.The time taken for sunlight to reach the Earth
Correct Answer: C
Sunlight takes approximately 8 minutes and 20 seconds to travel from the Sun to the Earth.
Q1394.Which country launches gigantic telescope "Sky Eye " for hunt of life beyond earth:
Correct Answer: C
China launched the giant 'Sky Eye' (FAST) telescope.
Q1395.A helium balloon floats in the air because of which reason?
Correct Answer: B
Helium gas is less dense than the surrounding air molecules, allowing the buoyant force to lift the balloon.