Zach listed the process of how laser beams are produced with crystals. A flashlamp pumps energy through the crystal. Atoms in the crystal absorb and then release some of the energy as light. Light bounces off mirrors and occasionally bounces off crystal atoms, increasing in energy. Some light escapes the tube through the highly reflective mirror, forming a concentrated beam. Which best describes Zach's error?

a) cold, dry

explanation:

continental polar masses are cold and dry air masses because the cold air cannot hold much moisture. as they move into warmer air, they can trigger precipitation.

neither accurate nor precise.

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.