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‘ FOAL ’ is the only possible word.
What is the role of Ultraviolet Radiation (UV) in the water purification systems?
1. It inactivates/kills the harmful microor...
Approximately how old is the Sun?
What is the scientific name of the common pigeon?
What type of cloud formation results when airplanes fly through banks of altocumulus clouds?
Who discovered infrared rays?
What element is used to make the filament of an electric bulb?
In the context of air pollution measurements, what does "PM2.5" refer to?
At what angle is a pendulum's equilibrium position defined?
What is the name of the instrument used to measure blood pressure?
100 gram of ice at 0°C is mixed with 100 gram of water at 80°C. What will be the final temperature of the mixture?