Give examples to illustrate the beneficial or harmful effects of weather changes on people's production or life.

For example, heavy snow is the quilt of winter wheat, and foggy weather will have a serious impact on traffic and easily lead to traffic accidents. In addition, the weather has an impact on people's health and mood, and some diseases, such as arthritis, heart disease and colds. The low pressure before cloudy days and rain will make school-age children fidgety, and the bright sunshine will make them happy, especially in winter.

Weather:

Weather refers to the specific state of the near-surface atmosphere in a short time. Weather phenomenon refers to various natural phenomena in the atmosphere, that is, the comprehensive expression of the spatial distribution of various meteorological elements in the atmosphere (such as temperature, pressure, humidity, lightning, wind, clouds, fog, rain, snow, frost, lightning, hail, haze, etc.). ) in an instant.