Earthquakes can cause:
flood
land slide
tsunami
all of the above
Which of the following part of the earth is made up of molten iron?
mantle
inner core
outer core
crust
Which of the following country in the world is most prone to earthquake?
India
America
China
Japan
Electric charge can be transferred from a charged object to another through:
vacuum
air
insulator
conductor
Earthquake at two places A and B were measured by a seismograph which recorded the magnitude as 2 and 4. The magnitude of tremors and its destructive energy at A and B can be compared us under:
Tremor at B are two times that at place 'A'
Tremor at B are four times that at place 'A'
Tremor at B are 100 times that at place 'A'
Tremor at B are 1000 times that at place 'A'
When a glass rod is rubbed with silk cloth, it acquires positive charge because:
electrons are added to it
electrons are removed from it
protons are added to it
protons are removed from it
Which natural calamity cannot be predicted accurately in advance?
Earthquake
Famine
Cyclone
Flood
An earthquake of magnitude 2 on Richter scale is:
two times as strong as an earthquake of magnitude 1
four times as strong as an eartquake of magnitude 1
ten times as strong as an earthquake of magnitude 1
hundred times as strong as an earthquake of magnitude 1
Lightning rods are made of:
copper
plastic
bakelite
sand paper
A lightning conductor installed in a building:
does not allow the lightning to fall on the building
repels the lightning
forces the lightning to fall in an area where there are no buildings
conducts electric charge to the ground when lightning strikes the building
