During heavy rain, you can observe the massive emergence of earth (earth) worms on the soil surface or paths. Explain this phenomenon.

1) during the rain, earthworms crawl out of their holes and are on the surface of the soil, since they have skin respiration;
2) rainwater fills their holes, and they have nothing to breathe; to save themselves, they get out.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.