If a 72-candela light source is located at a distance of 3 meters from a surface, the illuminance on the surface is lux. a. 648 b. 24 c. 8 d. 216

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

Surface currents are caused by blank space . question 14 options: surface currents are caused by? differences in water temperature high salinity differences in density wind forces

The three types is stress that act on earths rocks are compression, tension, and