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Everyday Science MCQs

Learn important and useful science facts that help you in daily life and job exams with our Everyday Science MCQs. This section covers simple questions from physics, chemistry, biology, environment, and general science. You will understand things like how the human body works, how machines run, natural events, and more. These MCQs are made for job tests like FPSC, NTS, PPSC, SPSC, BPSC, PMS, CSS, ISSB, and one-paper exams. All questions follow the latest syllabus and paper patterns. At Jobexams, we prepare everything to help you pass your job exams and job tests easily. New questions are added regularly — so you can stay ready and confident.

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1 Environmental Science MCQs

Which gas is not a greenhouse gas?

  • Methane
  • Nitrous oxide
  • Carbon dioxide
  • Hydrogen
0 Comments
Correct Answer: D. Hydrogen

Explanation:

Greenhouse gases are compounds in the atmosphere that trap heat from the sun, ... Read More Details

2 Chemistry MCQs

Which gases are commonly used in welding?

  • Oxygen and hydrogen
  • Oxygen, hydrogen, acetylene and nitrogen
  • Oxygen, acetylene and argon
  • Oxygen and acetylene
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Correct Answer: D. Oxygen and acetylene

Explanation:

Welding is a process used to join metals by melting them together. One ... Read More Details

3 Chemistry MCQs

What is potassium nitrate mainly used for?

  • Medicine
  • Fertilizer
  • Salt
  • Glass
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Correct Answer: B. Fertilizer

Explanation:

Potassium nitrate (KNO₃) is a chemical compound widely used in agriculture and industry. ... Read More Details

4 Environmental Science MCQs

Which metal causes air pollution in big cities?

  • Copper
  • Chromium
  • Lead
  • Cadmium
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Correct Answer: C. Lead

Explanation:

Air pollution in big cities is a serious environmental problem, and certain metals ... Read More Details

5 Biology Mcqs

What color do we usually see when our eyes are closed?

  • Black
  • Grey
  • Eigengrau
  • None of these
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Correct Answer: A. Black

Explanation:

When we close our eyes in the dark, many people assume that what ... Read More Details

6 Physics MCQs

Why does a bird sitting on a high-voltage electric wire not get electrocuted?

  • It has high resistance
  • The body is earthed
  • It does not form a closed path for the flow of current
  • Its feet are good insulators
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Correct Answer: C. It does not form a closed path for the flow of current

Explanation:

When a bird perches on a high-tension electric wire, it does not get ... Read More Details

7 Chemistry MCQs

What is the chemical name of pure limestone?

  • Aluminum Oxide
  • Calcium Carbonate
  • Calcium Sulphate
  • None of these
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Correct Answer: B. Calcium Carbonate

Explanation:

Limestone is one of the most abundant and important sedimentary rocks on Earth. ... Read More Details

8 Biology Mcqs

Why is milk not considered a complete balanced diet?

  • Magnesium and Vitamin D
  • Iron and Vitamin B
  • Iron and Vitamin C
  • Calcium and Vitamin C
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Correct Answer: C. Iron and Vitamin C

Explanation:

Milk is often referred to as a nearly complete food because it contains ... Read More Details

9 Everyday Science MCQs

Why do stars appear to twinkle in the night sky?

  • a series of refractions
  • a series of reflections
  • a surface tension phenomenon
  • multiple diminishing brightness
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Correct Answer: A. a series of refractions

Explanation:

Stars appear to twinkle in the night sky because of a phenomenon called ... Read More Details

10 Biology Mcqs

Which vitamin is present in chili?

  • Vitamin A
  • Vitamin B
  • Vitamin C
  • None of these
0 Comments
Correct Answer: C. Vitamin C

Explanation:

Chili is a widely used spice and vegetable, known for its hot and ... Read More Details

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