Which of these technology tools would best a family reduce the spread of germs and bacteria at home?

The speed of light is around 6.706×10^8 miles per hour. what is the speed of light in units of miles per minute?

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)

What is the wavelength of a wave with a velocity of 50 m/s and a frequency of 5hz a 250 m b 0.1 m c 10m d 0.01 m