General Science

Electric Circuits and Currents
The metal detectors that are used in malls, stations, airports and other commercial areas have
magnets
resistors
fuses
electromagnets
Author: rikazzz Comment
Importance of Water
Desalinated and distilled water is mostly used in
North America
South America
Middle East
East Asia
Author: rikazzz Comment
Sound Waves
The speed of sound in wood is
2000 m/s
3000 m/s
4000 m/s
5000 m/s
Author: rikazzz Comment
Dispersion of Light
The objects that do not produce their own light are known as
luminous objects
non luminous objects
opaque objects
translucent objects
Author: rikazzz Comment
Respiration and Food Energy
Asthma can get worse due to
bacteria
viruses
insects
dust
Author: rikazzz Comment
Investigating Space
The disc contains a huge bulge in the
border
outline
middle
edges
Author: rikazzz Comment
Electric Circuits and Currents
Many machines we use, are powered by
thermal energy
sound energy
electric motors
dynamos
Author: rikazzz Comment
Investigating Space
Without sun, the solar system would not
exist
rotate
move
maintain its temperature
Author: rikazzz Comment
Atoms and Atom Model
The nucleon number of an atom can
differ
change
vary
modify
Author: rikazzz Comment
Elements and Compounds
When magnesium element is burnt with oxygen it makes a compound called
magnesium peroxide
magnesium oxide
magnesium carbonate
magnesia
Author: rikazzz Comment

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