lunar castic is
silver nitrate
gold nitrate
silver nitrite
gold nitrite
antifreeze is
ethylene glycol
ethyl alcohol
methyl isocyanate
phenol
black lead is
graphite
carbon
mercury
zinc
Who is inventor of "phonograph"
Philo Taylor Farnsworth
Thomas Alva Edison
Benjamin Franklin
Galileo Galilei
Who was inventor of "thermometer"
James Gregory
Robert Hutchings Goddard
Choose invention done by Thomas Alva Edison from option
steam engine
telescope
telephone
electric light bulb
Roentgen discovered steam engine
True
False
iRobot is a company that manufactures hosehold Robots.
Windows Aero in MS Windows Vista is accessible via Alt+Tab key combination
Large Hadron Collider acclerates positrons in a large circular underground tube.