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Everyday Science 2124 MCQs [All-Courses]

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Prepare effectively with our Everyday Science MCQs designed for PPSC, FPSC, NTS, OTS, PTS, AJKPSC, BPSC, KPPSC, PMS, CSS, and all competitive exams.
Our content covers Physics, Chemistry, Biology, Environment, Human Body, Inventions, Scientific Laws, and daily-life science concepts.
Strengthen your scientific understanding, improve MCQS accuracy, and boost your exam performance with well-structured and updated topics.

All Topics  2124

The color which we see when our eyes are closed?
A Black
B Grey
C Eigengrau
D None of these
Correct Answer: Eigengrau
On the Moon, the escape velocity is: __________?
A Less than on Earth due to its lower mass and smaller radius
B More than on Earth due to its smaller radius
C The same as on Earth because escape velocity is a constant
D Dependent on the time of day
Correct Answer: Less than on Earth due to its lower mass and smaller radius
Which metal pollute the air of a big city?
A Copper
B Chromium
C Lead
D Cadmium
Correct Answer: Lead
If a rocket is launched with a velocity less than the escape velocity of Earth, it will:
A Escape the Earth’s gravitational field
B Enter into an elliptical orbit around the Earth
C Fall back to Earth
D Travel to another planet
Correct Answer: Fall back to Earth
Potassium nitrate is used in__________?
A Medicine
B Fertilizer
C Salt
D Glass
Correct Answer: Fertilizer
Escape velocity depends on ________?
A Mass of the object trying to escape
B Radius of the planet or celestial body
C Both mass and radius of the planet or celestial body
D The velocity of the rotating planet
Correct Answer: Both mass and radius of the planet or celestial body
The gases used in different types of welding would include:__________?
A oxygen and hydrogen
B oxygen, hydrogen, acetylene and nitrogen
C oxygen, acetylene and argon
D oxygen and acetylene
Correct Answer: oxygen and acetylene
What is the escape velocity on Earth?
A 7.9 km/s
B 9.8 km/s
C 11.2 km/s
D 12.4 km/s
Correct Answer: 11.2 km/s
Which of the gas is not known as green house gas?
A Methane
B Nitrous oxide
C Carbon dioxide
D Hydrogen
Correct Answer: Hydrogen
Pen and a home which will need more velocity to escape from the earth?
A pen needs less velocity
B home needs more velocity
C both need the same velocity
D none
Correct Answer: both need the same velocity
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