What is the volume of alcohol present in 200.0 mL of a 55\%(v/v) solution of alcohol ?

What human activity increases beach erosion?

Which statement best describes the function of enzymes?

What do electromagnetic waves carry? how are they produced through which media can they move? where do they transfer energy? what do they not transfer? what do mechanical waves carry? how are they produced? through which media can they move? where do they transfer energy? what do they not transfer?