Explain why, in ancient times, warriors determined the approach of enemy cavalry by putting their ears to the ground?
October 30, 2020 | Education|
the conductivity of sound in a dense medium (soil, earth) is higher than in air.
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.