Q: Which microorganism is responsible for Dengue fever?
A: Viruses
Q: Helium is preferred to hydrogen in air balloons
because it:
A: does not form an explosive mixture with air
Q: Ozone layer is situated in the upper regions of
A: Stratosphere
Q: What does the term Dolby B or Dolby C printed
on tape recorders and other sound systems refer
to?
A: noise reduction circuit
Q: Pure water freezes at a temperature:
A: 32°F
Q: A vitamin requires cobalt for its activity. The vitamin is:
A: Vitamin B12
Q: In which direction a rainbow is formed ?
A: Opposite to the sun
Q: What happens to a person who receives the wrong type of blood?
A: the RBCs agglutinate
Q: Which of the following blood group is considered as Universal Donor ?
A: O
Q: Which one of the following animals is not "warm-blooded"?
A: Toad