Look at the wave in the picture. If it has a wavelength of 2 cm, how far apart are points A and B? How do you know?

picture is not there

explanation:

crosscutting concepts have application across all domains of science. as such, they are a way of linking the different domains of science. they include patterns; cause and effect; scale, proportion, and quantity; systems and system models; energy and matter; structure and function; and stability and change.

pure substance: iron,copper

impure substance: water,charcoal