Q18: Islamic Studies MCQ 2022

**In the periodic table, elements have been arranged:**A) In order of increasing volumeB) In order of increasing atomic numberC) All of theseD) None of these Show Answer Correct Answer: B – In order of increasing atomic number

**The orbital period of the planet Mercury around the sun is:**A) 88 daysB) 365 daysC) 2 yearsD) None of these Show Answer Correct Answer: A – 88 days

**The loudness of sound depends on its:**A) WavelengthB) FrequencyC) AmplitudeD) All of these Show Answer Correct Answer: C – Amplitude