Why do the trees of the equatorial forest have no growth rings, while the saxaul – a tree of the desert – may have several of them in a year?

At the equator, it is humid and warm all year round, and the trunk thickens evenly, and the annual rings of the desert tree correspond to the amount of rain.

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.