What is Carbon Dioxide known for?
Difficulty: Easy
About this MCQ
This Easy Science and Inventions question asks: What is Carbon Dioxide known for? The correct choice is C. The gas absorbed by plants during photosynthesis and released by humans during respiration. Read the options below, commit to one, then use the explanation to see why that choice holds and why the others do not.
Science and Inventions items like this one are written for Pakistan exams such as CSS, FPSC, PPSC, and NTS. The difficulty label is a hint about how much of the topic the stem assumes, not a score. Tags and exam names, when they are present, tell you where else the same idea is tested. Previous and next links stay in Science and Inventions so you can continue the subject. Related questions point at nearby stems if you want another angle on the same idea.
Treat the explanation as part of the question, not a footnote. If you missed it, reread the stem against the correct option before you open the next Science and Inventions item. A timed quiz is the same pool with a clock and a score. A past paper is a full sitting rather than this single question.
- A. The molecule that carries genetic instructions in living organisms
Why not A: “The molecule that carries genetic instructions in living organisms” does not fit this question. The answer is The gas absorbed by plants during photosynthesis and released by humans during respiration.
- B. The inventors credited with building and flying the first successful powered airplane
Why not B: “The inventors credited with building and flying the first successful powered airplane” does not fit this question. The answer is The gas absorbed by plants during photosynthesis and released by humans during respiration.
- C. The gas absorbed by plants during photosynthesis and released by humans during respiration ✓
- D. The inventor credited with developing the first practical electric light bulb
Why not D: “The inventor credited with developing the first practical electric light bulb” does not fit this question. The answer is The gas absorbed by plants during photosynthesis and released by humans during respiration.
Correct answer
C. The gas absorbed by plants during photosynthesis and released by humans during respiration
Explanation
The gas absorbed by plants during photosynthesis and released by humans during respiration is the value that answers “What is Carbon Dioxide known for” (option C). Option A (The molecule that carries genetic instructions in living organisms) does not fit this question. Option B (The inventors credited with building and flying the first successful powered airplane) does not fit this question. Option D (The inventor credited with developing the first practical electric light bulb) does not fit this question. For this Science and Inventions question, the accepted answer is The gas absorbed by plants during photosynthesis and released by humans during respiration.
Source: General Knowledge Official Reference Guide
Tags: FPSC, PPSC, General Knowledge, NTS, Science and Inventions
Submitted by: MCQsHub Editorial
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