Which of the following phenomenon is considered responsible for Global Warming?
Correct answer: A. Greenhouse effect
- A. Greenhouse effect
- B. Fire in coal mines
- C. Dry farming
- D. Monsoon
Explanation
The greenhouse effect occurs when gases such as carbon dioxide, methane and water vapour absorb outgoing infrared radiation and warm the atmosphere. Therefore, the greenhouse effect is directly responsible for global warming, making option a correct. Students may choose b because coal-mine fires release heat and smoke, but they are not the main atmospheric mechanism causing global warming.
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About Real and Ideal Gases
An ideal gas is modelled as particles with negligible volume and no intermolecular attraction, obeying Boyle's, Charles's and Avogadro's laws through PV = nRT. Real gases deviate from this behaviour, especially at high pressure and low temperature, because particle volume and attractive forces matter; the van der Waals equation explains these corrections.
Practise Gases
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