- Which of the following animals can hear ultrasonic sounds?
- “Omithology” is the study of:
- velocity of sound in air ?
- Texidermy is the art if stuffing of birds and animals and Philately is
- National Animal of India ?
- What is the code name of Abbottabad operation?
- In 1954, USA launched its first atomic submarine, what was its name?
- The olfactory nerves affect what sense in brain?
- Decibel is the unit used for ?
- What was the title of Hazret Khalid Bin Walid ?