List the abiotic environmental factors known to you, the values of which periodically and regularly change over time.

illuminance during the day, illuminance during the year, temperature during the day, temperature during the year, humidity during the year and others.

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.