521. Which one can be considered as the unit of distance?
A.foothpath
B.heavy year
C.light year *
D.none of these
522. Which one is not a planet?
A.earth
B.venus
C.moon *
D.none of these
523. In which direction does the earth rotate on its axis?
A.east to west
B.west to east *
C.north to south
D.none of these
524. Which can be considered in representing the geographic cordinate system?
A.aptitude
B.latitude *
C.attitude
D.none of these
525. Which part of the body will affected mainly by fluoride pollution?
A.brain
B.liver
C.teeth *
D.none of these
526. How can we symbolically right the ozone gas?
A.O2
B.O3 *
C.CO2
D.none of these
527. Which of the following is not an electromagnetic wave?
A.sound waves *
B.radio waves
C.light waves
D.none of these
528. For what terminology is the abbreviation GPS being used, globally?
A.geo pakistan system
B.global positioning system *
C.google path system
D.none of these
529. Plotting of the vibrations cause by and earthquake on a paper is called?
A.photograph
B.earthograph
C.seismograph *
D.none of these
530. What is the scientific name of the atoms of the same element with different mass number?
A.subshells
B.isotopes *
C.orbitals
D.none of these