Why should the first volume of science in the fourth grade of primary school predict the weather?

Weather forecast has positive social significance:

1, public

The public is the main user of weather forecast. Not only hail, hurricane and other weather disasters have a great impact and threat on public life, but even daily life, holiday arrangements, dressing and dressing also depend on the weather forecast. Television, radio, newspapers and the Internet all provide weather forecast services to the public.

2. Aviation

The weather has a great influence on aviation. Almost all airports have their own weather stations. Before the plane takes off, the crew should obtain the weather conditions and weather forecast data of the whole flight route.

3. Power system

Weather has a great influence on electricity consumption, so power companies predict electricity consumption through weather forecast.

4. Other private enterprises

Other private enterprises can also adjust demand and supply through weather forecast. For example, supermarkets can provide more drinks in hot weather.