Everyday Science MCQs, Assistant (Bs-16) In The Chief Minister Office Overseas Pakistanis, PPSC Solved Past Papers MCQsFor sending sound waves at a large distance, which waves are used?A. Infra Red Waves B. X Radio Waves C. Light Waves D. X-Waves Identify the last Ghazwa in Islam in which the Holy Prophet (PBUH) participatedThe speed of sound in air at sea level is approximately?
