(176) Cow milk is a rich source of ?
- A. vitamin C
- B. vitamin B
- C. vitamin A
- D. vitamin K
(177) An element that does not occur in nature but can be produced artificially is ?
- A. Plutonium
- B. Uranium
- C. Radium
- D. Thorium
(178) Which one of the following can be synthesized by Liver ?
- A. Vitamin B6
- B. Vitamin B12
- C. Vitamin K
- D. Vitamin E
(179) Average salinity or ratio of salt as per kilogram of water of ocean is ?
- A. 35 grams
- B. 55 grams
- C. 32 grams
- D. 42 grams
(180) Big Bang theory explains ?
- A. Origin of Universe
- B. Origin of Sun
- C. Laws of physics
- D. None of above
(181) Bromine is a ?
- A. black solid
- B. red- brown liquid
- C. colourless gas
- D. highly inflammabl e gas
(182) How does smoking cigarettes impact the red blood cells?
- A. Decreases their ability to congeal
- B. Decreases their ability to carry oxygen
- C. Decreases their ability to reach their typical life duration
- D. Decreases their ability to cleanse wounds
(183) The blueness of the sky is mainly due to ?
- A. The scattering of sunlight by air molecules
- B. The presence of water vapor
- C. Absorption of blue light by the air
- D. Emission of blue light by the atmosphere
(184) The earth’s atmosphere is divided into layers based on the vertical profile of ?
- A. Air pressure
- B. Air temperatur e
- C. Air density
- D. Wind speed
(185) The outermost layer of skin is the ?
- A. endodermis
- B. dermis
- C. epidermis
- D. hypodermis
(186) The phases of the moon are partially the result of the ?
- A. Changes in the shape of the moon
- B. Revolutio n of the moon around the earth
- C. Variations in the moon’s gravitation
- D. Variation s in the speed of rotation of the moon
(187) Who was the first to measure the earth’s radius
- A. Galileo
- B. Copernicus
- C. Ptolemy
- D. Eratosthen es
(188) Central Color of Rainbow is ?
- A. Blue
- B. Green
- C. Red
- D. Indigo
(189) Who discovered the Gamma Rays?
- A. Alfred Marshall
- B. Paul Villard
- C. Bohar
- D. Jabar bin Hayan
(190) The horizontal rows of the periodic table are called ?
- A. Groups
- B. Periods
- C. Sets
- D. Matrices
(191) How long does the earth take to cover 1° longitude?
- A. 2 Minutes
- B. 3 Minutes
- C. 4 Minutes
- D. 5 Minutes
(192) Japan is called ‘Land of the rising sun’ because:
- A. Sun rises there as soon as it sets
- B. Sun always remains in the eastern past of the sky throughout the day in Japan
- C. Japan being the Eastern most country in the world, it has the earliest sunrise
- D. The rays of the sun get reflected from the waters of the sea and make the sunrise beautiful in Japan
(193) Approximate age of earth is ?
- A. 4.14 billion years
- B. 4.64 billion years
- C. 4.54 billion years
- D. 4.34 billion years
(194) Which of the following is not a water soluble vitamin?
- A. Tocopherol
- B. Pyridoxine
- C. Pantothenic acid
- D. Niacin
(195) The distance b/w Earth and Moon is ?
- A. 3,50,000km
- B. 3,60,100km
- C. 3,72,000km
- D. 3,84,400km
(196) One Joule is equal to ?
- A. 105 ergs
- B. 103 ergs
- C. 107 ergs
- D. 1011 ergs
(197) Disolved oxygen (DO) in water should be?
- A. 400 to 800 ppm
- B. 4000 to 8000 ppm
- C. 0.4 to 0.5 ppm
- D. 4 to 5 ppm
(198) The study of fish is known as ?
- A. Entomology
- B. Ichthyology
- C. Ecology
- D. None of these
(199) A dolphin perceives its environment by the sense of ?
- A. Sight
- B. Sound
- C. Both of these
- D. None of these
(200) Telephone was invented by ?
- A. Vint Cerf
- B. Charles Babbage
- C. Edison
- D. Alexander Graham Bell