1741. Law of floating bodies was given by :

A. Archimedes *
B. Galileo
C. Copernicus
D. Plotly

1742. There is no neutron in the atom of :

A. Carbon
B. Nitrogen
C. Hydrogen *
D. Ozone

1743. “Green House Effect ” means :

A. Pollution in houses in tropical regions
B. Trapping of solar energy due to atmospheric oxygen
C. Trapping of solar energy due to atmospheric carbon dioxide *
D. Cultivation in green houses so as to check pollution

1744. What is RDX ?

A. An instrument
B. A gene
C. A fertilizers
D. An explosive *

1745. Who coined the term ” Big Bang”?

A. Fred Hoyle *
B. Thomas Edison
C. James Chadwick
D. Albert Einstein

1746. ” Sucking the muck” is the common operating room nickname fo which of the following procedures :

A. Liposuction *
B. Face lifts
C. Knee replacement
D. Galld Bladder

1747. The golden age of Dinosaurs was :

A. Palaeozoic
B. Coenozoic
C. Mesozoic *
D. Proterozoic

1748. The oldest Era is :

A. Palaeozoic
B. Mesozoic
C. Coenozoic
D. Proterozoic *

1749. What substances are produced by the endocrine glands ?

A. Red blood cells
B. Cartilage
C. White blood cells
D. Hormones *

1750. John Glenn was the first man to eat in space. What did he eat ?

A. Bread
B. Pudding
C. Corn
D. Applesauce *