Explain how the sun's position in the sky would change the direction of your shadow if you were to stand in the same place all day.

Which statement accurately describes the relationship between air pressure, air density, or altitude? as altitude increases, pressure increases. as altitude increases, air density increases. air pressure and density are lowest at sea level. denser air exerts more pressure than less dense air.

Compare the valence electron configuration of the nobles gas elements seen here. what statement is correct?

According to each substances heat of fusion, which of the items below requires more heat to be added per gram of substance to go from solid to liquid? silver sulfur water lead