51. Which of the following caused by natural disaster by volcanic eruption in ocean
a) Tsunami
b) Hurricane
c) Cyclone
d) All of these
52. Who invented the Mercury Thermometer
a) Daneil Fahrenheit
b) Pascal
c) Netwon
d) None of these
53. What is used to measure electric current:
a) Apmere meter
b) Resistor
c) Both
d) None of these
54. What is the systolic pressure in a healthy individual:
a) 120 torr
b) 80 torr
c) 100 tor r
d) None of these
55. What are objects that orbit a planet called:
a) Meteroids
b) Satelite
c) Rocket
d) None of these
56. The ozone layer protects us from which rays:
a) Gamma rays
b) Infrared rays
c) U.V rays
d) None of these
57. What is the study of human populations called?
a) Ecology
b) Environmental Biology
c) Herpetology
d) Demography
58. What is the study of ancient things called:
a) Archaeology
b) Anthropology
c) Geology
d) All of these
59. Who invented the railway engine
a) Srephen hawking
b) Newton
c) Charles Smith
d) George Stephenson
60. Who invented the telephone:
a) George William
b) Greenwich
c) Alexander Graham Bell
d) Einstein
