Which of the following is a flightless bird?
1). Peacock
2). Duck
3). Emu
4). Swan
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1. Which of the following is used to split white light Into different colours ?
2. The noble gas used in radiotherapy is
3. Bakelite is a copolymer of Phenol and
4. When milk is churned the cream separates from it due to:
7. Oxygen which is vital for life is a product of photosynthesis and conies from
8. Who developed Hydrogen Bomb?
9. Which of the following is used as a lubricant in heavy machines?