Explain how changes in weather are caused by the interaction of air masses

Why cooking gas has a typical smell

What are chlorofluorocarbons and what impact do they have on the atmosphere?

Which of the following are properties of mechanical waves? check all that apply ⭕️ particles of the medium move back and fourth, but do not move with the wave. ⭕️ the particles of the medium always move parallel to the wave motion. ⭕️ wave motion begins with a disturbance in the medium. ⭕️ waves transport energy from a source outward, away from the source.