How could this knowledge of the interactions of light and materials be used in choosing materials for the outside of a building?

Johnny rode his bike 4 blicks down the street to his friend's house once he got to his friend house and realized he could not cone out to play he turned aroubd and went back home.what is displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

Which set of terms best describes a community of miners who live out in the countryside of west virginia and use specialized geological equipment to analyze the composition of rock?

Where is most of the fresh water on earth found a in the ocean b in glaciers and in ice caps c in rivers d in the soil