An object possesing an excess of 6.0x10^6 electrons has what net charge?

Select the best definition for wavelength. the height of an oscillating electromagnetic wave the rate at which electromagnetic waves oscillate. the distance between two crests of an electromagnetic wave. the oscillations of electric and magnetic fields select the best definition for frequency. the oscillations of electric and magnetic fields. the height of an oscillating electromagnetic wave. the distance between two crests of an electromagnetic wave. the rate at which electromagnetic waves oscillate

What is the role of the water cycle in maintaining freshwater levels in lake and rivers?

Ivana walks 2km north then turns around and walks 3km south