Which of the following has minimum ignition temperature? 

Who among the following received the Nobel Prize 2019 for Physics? 

Who has become the first deaf person to row an ocean by finishing a 3,000 - mile journey across the Atlantic? 

Which of the following is an aldehyde? 

The oesophagus and lining of the mouth are also covered with   

Which of the following is the largest living bird? 

Clear nights are colder than cloudy nights because of – 

Which one of the following animals can hear ultrasonic sound?