A beam of light exhibits diffraction when it passes through a small opening. Which model of the nature of light does this example support?
A. The interference model
B. The wave model
C. The diffraction model
D. The particle model

The semi-conductors on the periodic table are classified as

An uncovered pot of water lies out in the sun. which statements correctly describe what happens at the surface of the liquid water? 1. the vapor pressure remains constant regardless of the water temperature. 2. the vapor pressure is produced by water molecules that have evaporated. 3. the vapor pressure increases as the sun heats the water in the pot. 4. evaporation stops once the vapor pressure reaches a certain point. 5. evaporation and condensation both occur on the liquid’s surface.

What is the difference between skimming and absorbing methods of the oil removal