In converting a number with the unit of meter into kilometer we must use the conversion factor 1 km per 1000 meters.This is because in 1 kilometer there are 1000 meters and then the unit to be converted is already in meter so we need to divide it for us to convert.
A. Longer
The shortest wavelength on the left side is Gamma rays. The longest are radio so as you move to the right, it gets longer.
When converted to a household measurement, 9 kilograms is approximately equal to a